Hong Kong – Health Issues

What are the most common health issues and diseases in Hong Kong?

As with most affluent economies, Hong Kong’s foremost health challenge is non-communicable disease (NCD). Six categories of NCDs — cancers, cardiovascular disease, cerebrovascular disease, chronic lower respiratory disease, injuries and poisoning, and diabetes mellitus — collectively accounted for 51.8% of all registered deaths in Hong Kong in 2023. These figures, drawn from the official HealthyHK portal, reflect a trajectory familiar to many developed nations, though Hong Kong displays some characteristics that set it apart.

Among chronic conditions, hypertension and diabetes mellitus carry the greatest prevalence, particularly within elderly age groups. This broadly mirrors trends observed in comparable cities such as Singapore and Seoul, but Hong Kong faces a particularly acute problem with undetected illness: it is believed that the number of people living with undiagnosed chronic disease may be roughly double the number currently receiving treatment.

In 2020/21, approximately 31% of the population — around 2.2 million people — was living with at least one chronic health condition, nearly half of whom were aged 65 or older. Hong Kong’s rapidly ageing society is a key driver of this figure. Projections suggest that the number of Hospital Authority patients with chronic conditions could reach 3 million by 2039.

Cancer is the single greatest cause of death in the territory. The Hong Kong Cancer Registry monitors incidence in detail; colorectal, lung, breast, liver, and nasopharyngeal cancers feature among the most frequently recorded types. Nasopharyngeal cancer — affecting the upper part of the throat behind the nose — occurs at disproportionately higher rates in Hong Kong and southern China than in virtually any other part of the world, a pattern linked to a combination of genetic predisposition, certain dietary habits, and environmental exposures. Expats with a relevant family history would be well advised to raise this with a local doctor.

Chronic lower respiratory disease ranked as the tenth leading cause of death in Hong Kong in 2023, a reflection of both demographic ageing and the impact of the city’s urban air environment. Asthma and chronic obstructive pulmonary disease (COPD) remain ongoing public health concerns, most acutely felt among older residents and former or current smokers.

Is Hong Kong considered a healthy place? How do health outcomes compare internationally?

Judged by standard health metrics, Hong Kong’s performance is outstanding. After dipping during the pandemic years, life expectancy recovered to record levels in 2024, with women averaging 88.4 years and men 82.8 years according to census data — placing Hong Kong at or near the very top of global longevity tables.

By 2024, Hong Kong had edged ahead of Japan, which recorded averages of 88.3 years for women and 83.0 years for men. For context, women in the UK live on average 83.0 years and in the USA 82.0 years; men in the UK reach 79.5 years on average and in the USA 77.0 years. Readers seeking the most current comparative figures should consult the WHO Global Health Observatory or the Hong Kong Census and Statistics Department.

Researchers attribute Hong Kong’s extraordinary longevity to a low infant mortality rate, a healthy migrant effect, relatively low smoking rates (particularly among women), few fatalities from road traffic accidents, and sustained investment in public healthcare infrastructure. The city’s heavily subsidised public hospital network plays a central role — broadly analogous in its accessibility to publicly funded systems in countries such as France or Australia, though organised along different lines.

Against these impressive indicators, however, several counterweights exist. Workplace pressure, housing unaffordability, and extremely cramped living conditions have all been shown to produce measurable negative health effects. A recent Cigna Group survey found that Hong Kong residents reported the weakest physical, mental, social, and occupational wellbeing scores across twelve markets surveyed, including the US, UK, mainland China, and Singapore. These realities deserve serious consideration from any expat planning their long-term wellbeing in the city.

Research conducted jointly by the Institute of Health Equity at University College London and the Chinese University of Hong Kong has also identified clear social gradients in health outcomes across the territory: lower household income is consistently associated with poorer self-rated health and higher rates of chronic disease. The city’s impressive aggregate longevity does not translate into uniformly good health for all residents.

What infectious diseases or environmental health risks should expats be aware of in Hong Kong?

Influenza, measles, and dengue fever are among the infectious diseases that circulate regularly in Hong Kong. Given the city’s role as one of the world’s most connected transport hubs, it is particularly susceptible to the rapid introduction and spread of communicable illness. Seasonal influenza typically follows two peaks each year — one in winter and another in summer — and the Department of Health strongly recommends annual vaccination for adults and children.

Dengue fever, spread by the Aedes mosquito, is an established risk in Hong Kong, with transmission occurring mainly during the warmer, wetter period from May to October. Although large-scale outbreaks are uncommon, isolated cases are reported each season, especially in locations where standing water provides mosquito breeding grounds. Expats arriving from countries with little prior exposure to mosquito-borne illness should be diligent about applying insect repellent and wearing appropriate clothing during the humid summer months.

Hepatitis B is considerably more prevalent in Hong Kong than across much of Europe or the Americas, with historical carrier rates in the local population estimated at 8–10%. Any expat who has not previously been vaccinated or confirmed immune should arrange vaccination without delay. Hepatitis A immunisation is also advisable and should be discussed with a travel medicine specialist before the move. For official vaccination guidance, refer to the Centre for Health Protection, and consult your home country’s travel health authority for destination-specific pre-departure recommendations.

Hand, foot and mouth disease (HFMD) is a notable childhood illness in Hong Kong, affecting primarily children under five years of age. Although it circulates year-round, activity tends to peak in spring and autumn. Expat families with young children should stay alert to outbreak notifications issued through schools and official health channels.

Air quality represents one of the more significant environmental health concerns in Hong Kong. Roadside concentrations of nitrogen dioxide, fine particulate matter (PM2.5), and ground-level ozone are elevated in densely built areas, and the situation can worsen considerably during regional smog episodes driven by pollution drifting in from the Pearl River Delta. The Environmental Protection Department publishes a real-time Air Quality Health Index (AQHI) at aqhi.gov.hk — a resource that expats with respiratory or cardiovascular conditions should consult regularly. In contrast to air quality concerns, Hong Kong’s drinking water is safe from the tap across most of the city and is subject to rigorous monitoring.

On the subject of food safety: Hong Kong maintains strong hygiene standards through the Centre for Food Safety, and its vibrant street food and hawker culture generally adheres to good practices. Nonetheless, the standard precautions apply — choose freshly cooked dishes, exercise caution with raw shellfish particularly after storms or typhoons, and consult the Centre for Food Safety for any current advisories or food alerts.

Is smoking common in Hong Kong, and what are the laws around it?

Hong Kong’s tobacco control framework dates to 1982, when the government introduced the Smoking (Public Health) Ordinance, subsequently strengthened through numerous amendments. Over the four decades since its enactment, the overall smoking rate declined markedly — from 23.3% in 1982 to approximately 9.5% in recent years — a substantial public health achievement by any measure.

As of 2023, the daily conventional cigarette smoking rate among those aged 15 and over stood at 16.4% for males and 2.7% for females, yielding a combined overall prevalence of roughly 9.1%. The pronounced gender difference is notable: while around 19% of Hong Kong males smoke, the equivalent figure in mainland China is approximately 53%, illustrating the considerably stronger tobacco control environment that exists in Hong Kong.

Smoking is prohibited in the great majority of public places, and tobacco advertising is comprehensively banned. No-smoking designations cover indoor workplaces, restaurants, bars, shopping centres, public transport, beaches, and a range of outdoor public areas. Dedicated smoking areas are provided in some outdoor locations. Penalties for violations are actively enforced. In terms of the breadth of its restrictions, Hong Kong’s approach is broadly comparable to frameworks operating in Australia, the UK, or Canada, all of which similarly prohibit smoking across indoor and many outdoor public spaces.

A stricter policy applies to alternative tobacco and nicotine products. E-cigarettes, heated tobacco devices, and herbal cigarettes were banned from import, manufacture, sale, and distribution under the Smoking (Public Health) (Amendment) Ordinance 2019, which took full effect in 2020. This places Hong Kong in a markedly different position from jurisdictions such as the UK, where vaping is actively encouraged as a smoking cessation aid. Expats who use electronic cigarettes or similar devices must be aware that importing these products into Hong Kong is a criminal offence carrying penalties including fines and confiscation.

The Hong Kong government has also consulted publicly on a proposed tobacco-free generation law that would permanently prohibit tobacco sales to anyone born after a specified date. If enacted, this policy would position Hong Kong among the global leaders in tobacco endgame legislation.

Is obesity or poor diet a significant health concern in Hong Kong?

While Hong Kong’s obesity rates remain lower than those of many high-income Western nations, the trend is moving in the wrong direction, with particular concern focused on children and young adults. Adult obesity by conventional BMI thresholds is relatively modest; however, clinicians in Hong Kong commonly apply Asia-specific BMI cut-offs, classifying individuals with a BMI of 23 or above as overweight and 27.5 or above as obese, compared with the global WHO thresholds of 25 and 30 respectively. When these adjusted benchmarks are applied, the proportion of people considered overweight or obese rises considerably.

Childhood obesity is an area of growing concern. Centre for Health Protection data from the 2018/19 school year indicated that the combined prevalence of overweight and obesity among primary school pupils was 21.1%, while secondary school students showed overweight and obesity rates of 16.5% and 7.1% respectively. These figures predate the most recent post-pandemic assessments; up-to-date school health statistics are available from the Centre for Health Protection.

Hong Kong’s culinary landscape is richly diverse. The traditional Cantonese diet — built around steamed, stir-fried, and braised preparations with an emphasis on fresh seafood, vegetables, and rice — is widely regarded as one of the world’s healthier food cultures. Yet the same dense urban environment that makes Cantonese home cooking accessible also places ultra-processed foods, high-sodium restaurant meals, sugar-laden drinks, and fast food chains within easy reach at all times.

As of 2020, approximately 55% of deaths in Hong Kong were linked to chronic conditions including hypertension, heart disease, diabetes, and chronic respiratory illness, underscoring that diet and lifestyle remain central concerns even within a population of exceptional longevity. The government’s “Change4Health” programme promotes healthier eating and greater physical activity through community-based initiatives, while the Primary Healthcare Blueprint charts a prevention-oriented course for the decade ahead.

Traditional Chinese medicine and its associated emphasis on dietary balance and mind-body practice remains widely integrated into everyday wellness culture. Hong Kong’s parks, beaches, hiking trails, and public sports facilities are plentiful and easily reached by public transport, making an active lifestyle realistically achievable despite the city’s extreme density. Many residents — across all backgrounds — make regular use of these outdoor spaces as a counterweight to the pressures of urban life.

What are the mental health attitudes and services like in Hong Kong?

Mental health continues to carry a degree of stigma in Hong Kong, as it does in much of East Asia. Cultural expectations around resilience, maintaining social face (mianzi), and not burdening others with personal difficulties can discourage people from seeking professional help or even acknowledging psychological distress within their own social circles. That said, public awareness of mental health has increased considerably in recent years, driven in part by the social unrest of 2019, the sustained pressures of the COVID-19 pandemic, and growing recognition of the city’s high-stress urban environment.

Hong Kong residents face substantial everyday stressors, with the cost of living and anxieties about the future consistently identified as the most significant concerns. For newly arrived expats, the demands of relocation, professional adjustment, and building a social network from scratch in an unfamiliar city can layer additional strain on top of these ambient pressures. It is worth noting that in 2023, the three leading causes of death under the injuries and poisoning category were intentional self-harm, falls, and accidental poisoning — a reminder that mental health has serious and measurable consequences at a population level.

Public mental health care in Hong Kong is delivered primarily through the Hospital Authority’s specialist outpatient psychiatric clinics, which are heavily subsidised but often carry waiting times of many months for non-urgent presentations. This contrasts with countries such as France or Germany, where community-based psychological therapy tends to be more readily integrated into primary care pathways. Expats facing acute mental health difficulties should access the Hospital Authority’s emergency services or turn to private care, which offers much shorter access times but at considerably greater cost.

The private sector provides a broader range of psychiatrists, clinical psychologists, and counsellors, many of whom consult in English, Mandarin, French, and other languages — making private care a realistic option for expats who do not speak Cantonese. Several international hospital groups and multi-specialty private clinics in Hong Kong have established dedicated mental health services alongside their general medical offerings.

Non-governmental organisations including the Samaritan Befrienders Hong Kong and Mind HK offer helplines, peer support, and online resources in multiple languages. Mind HK in particular has developed materials and service directories tailored to international and expat communities. Any expat arriving with existing mental health conditions should plan their continuity of care before leaving their home country — ensuring adequate medication supply and obtaining referral letters or clinical summaries from their current treatment team.

Are there any health risks specific to expats living in Hong Kong?

Hong Kong’s subtropical climate demands some physical acclimatisation, especially for those arriving from cooler or drier parts of the world. From May through September, the city is intensely hot and oppressively humid; heat exhaustion and heat stroke are real hazards, particularly for those exercising outdoors or working in environments without air conditioning. Pacing outdoor activity, staying consistently well hydrated, and allowing the body several weeks to adjust are all prudent steps during the initial settling-in period.

The typhoon season spans May to November. Severe typhoons can significantly disrupt healthcare access, close clinics, and confine residents indoors for extended periods. Expats should familiarise themselves with Hong Kong’s typhoon signal system — from T1 through to T10 — and maintain a home stock of any essential medication sufficient to see them through a disruption of several days.

It is also common for new arrivals to experience a period of digestive adjustment. The local food environment, while broadly healthy, introduces bacteria and culinary profiles unfamiliar to many newcomers. Most such symptoms are transient and resolve within a few weeks; however, persistent or severe gastrointestinal complaints warrant a visit to a physician.

Expats who lack immunity to hepatitis B, or who have not previously been vaccinated against Japanese encephalitis or typhoid, should discuss these immunisations with a travel medicine clinic either before departure or shortly after arrival. The Centre for Health Protection publishes local vaccination schedules, while destination-specific guidance from your home country’s travel health service — such as the UK’s NHS Travel Health pages or the US CDC Traveler’s Health portal — provides additional personalised advice.

Arranging adequate health insurance before arriving is essential. Hong Kong’s public hospital system, though high in quality, charges non-permanent-resident expats at rates above those applicable to eligible residents, and non-emergency specialist appointments through public channels can involve extended waiting periods. Most expat employment packages include private health insurance; those without employer-provided coverage should secure comprehensive international health insurance prior to arrival. Current fee schedules for overseas visitors and non-eligible persons are published by the Hospital Authority.

Hong Kong’s impressive longevity statistics owe much to an essentially free healthcare system with strong maternal and child health programmes, a well-developed hospital sector capable of extending life through secondary and tertiary care, and a social welfare system that provides a meaningful safety net. Expats with solid insurance coverage can navigate this system with greater flexibility, including access to private channels that substantially reduce waiting times.

Where can expats find reliable health information and services in Hong Kong?

The principal official source of public health information in Hong Kong is the Centre for Health Protection (CHP), an agency operating under the Department of Health, whose website is accessible at chp.gov.hk. The CHP publishes disease surveillance reports, immunisation schedules, outbreak notifications, and public health advisories in both English and Chinese.

The Health Bureau (healthbureau.gov.hk) oversees health policy and regulatory matters across the territory. The Hospital Authority (ha.org.hk) administers all public hospitals and specialist outpatient services. The HealthyHK portal (healthyhk.gov.hk) serves as a useful one-stop source for population health statistics and disease burden data.

Real-time air pollution readings are available through the Environmental Protection Department’s Air Quality Health Index at aqhi.gov.hk. Food safety alerts and consumer advisories are published by the Centre for Food Safety at cfs.gov.hk.

For mental health support, Mind HK (mind.org.hk) offers multilingual resources and a searchable directory of mental health practitioners. The Samaritan Befrienders Hong Kong provides around-the-clock crisis support via their hotline at 2389 2222. Many international and private medical clinics in the city also offer English-language mental health services.

Expats are strongly encouraged to register with a local general practitioner or family medicine clinic promptly after arriving in Hong Kong. Private GP clinics are plentiful throughout the city’s main residential and commercial districts, and establishing an ongoing relationship with a local doctor makes it far easier to arrange specialist referrals, routine health screenings, and consistent continuity of care. Health guidelines, vaccination recommendations, fee structures, and disease alert levels are subject to change; always verify the current position with official sources both before departing for Hong Kong and once you have settled in.

Frequently Asked Questions About Health Issues in Hong Kong

Is tap water safe to drink in Hong Kong?

Yes. Hong Kong’s tap water satisfies World Health Organization quality standards and is safe to drink directly from the tap throughout most of the territory. The Water Supplies Department conducts rigorous ongoing monitoring. In older residential buildings, deteriorating internal pipework may occasionally affect water quality at the point of use; in such cases, fitting a basic filter or relying on bottled water for drinking purposes is a simple and sensible precaution.

Do I need vaccinations before moving to Hong Kong?

No vaccinations are required for entry into Hong Kong, but several are strongly recommended. At a minimum, immunisation against hepatitis A, hepatitis B, and seasonal influenza is advised. Depending on individual health circumstances and travel background, a travel medicine doctor may also recommend vaccination against typhoid, Japanese encephalitis, or other diseases. Consult the Centre for Health Protection at chp.gov.hk for local guidance, and contact your home country’s travel health authority for tailored pre-departure advice.

How does Hong Kong handle dengue fever?

Dengue fever circulates in Hong Kong primarily during the warmer months from May through October, carried by Aedes mosquitoes. No vaccine is routinely recommended for Hong Kong at present, so personal protection is the primary strategy: apply mosquito repellent, wear long-sleeved clothing in the evenings, and remove any standing water from around your home that could serve as a breeding site. The Centre for Health Protection issues seasonal alerts when activity is elevated.

Are e-cigarettes and vaping legal in Hong Kong?

No. Under legislation that took full effect in 2020, e-cigarettes, heated tobacco products (including devices such as iQOS), and related alternative smoking products are prohibited in Hong Kong. Importing, selling, manufacturing, or distributing these items is a criminal offence. Expats who use vaping devices should leave them behind rather than bring them into Hong Kong, as penalties include financial fines and confiscation of the products.

What mental health support is available for expats in Hong Kong?

A combination of public and private mental health services exists in Hong Kong. Subsidised psychiatric care through Hospital Authority clinics is available but frequently involves lengthy waits for non-urgent cases. Private psychiatrists and clinical psychologists are more immediately accessible, and many practise in English and other languages. Mind HK (mind.org.hk) provides a multilingual service directory alongside community-oriented resources. Anyone in crisis can contact the Samaritan Befrienders Hong Kong at any time on 2389 2222.

How bad is air pollution in Hong Kong, and should I be worried?

Air quality in Hong Kong warrants genuine attention, particularly in the most densely developed urban districts and during regional smog events. Those living with asthma, COPD, or heart disease, as well as young children, are most likely to experience the effects. The Environmental Protection Department’s Air Quality Health Index (AQHI), available at aqhi.gov.hk, delivers real-time readings on a scale from 1 (low risk) to 10+ (serious risk) along with corresponding health advice. On days when the AQHI is elevated, reducing prolonged outdoor physical activity and wearing a suitable mask are sensible precautions.

What are the main health risks of Hong Kong’s climate for newcomers?

The subtropical summer months from May to September bring intense heat, very high humidity, and heavy rainfall, raising the risk of heat exhaustion, dehydration, and greater mosquito exposure. Typhoons can disrupt normal services at any point between May and November. The cooler, drier period from November to February is generally mild and comfortable. Newcomers should acclimatise at a measured pace, drink plenty of fluids, and keep track of official typhoon warning signals throughout the storm season.

Is private health insurance necessary for expats in Hong Kong?

It is very strongly recommended. Although Hong Kong’s public hospitals are of a high standard, non-permanent residents are subject to elevated fee schedules compared with eligible residents, and non-emergency specialist appointments through public channels can mean considerable waiting times. Private health insurance — which many employers include as part of an expat compensation package — opens access to private hospitals and specialist services with much shorter delays. Those without employer-provided cover should put comprehensive international health insurance in place before arriving in Hong Kong. Up-to-date fee schedules for non-eligible persons are published on the Hospital Authority’s website.