Hair Loss in Singapore: A Complete Guide to Causes and Treatment Options

Hair Loss in Singapore: What You Should Know First

Hair loss is one of the most common concerns seen in dermatology and hair clinics worldwide. It affects both men and women, at all ages, and the causes are varied. Some forms of hair loss are genetic. Others are triggered by hormones, medical conditions, medications, infections, or lifestyle factors.

Two points are worth understanding at the outset. First, hair loss is rarely a simple problem with a single answer. Most patients have more than one contributing factor. Second, the treatment that works depends on the underlying cause. A treatment that helps one type of hair loss can be useless or even counterproductive for another.

This guide provides an overview of the main causes of hair loss and the treatment options available in Singapore. It is not a substitute for clinical assessment. For each cause, we link to more detailed articles where available. For treatments, we link to our service pages where the options are described in clinical detail.

Pattern Baldness (Androgenetic Alopecia)

Androgenetic alopecia (AGA) is the most common cause of hair loss. It is often called pattern baldness in men and female pattern hair loss in women. It is driven by a combination of genetic predisposition and the effect of androgens, or male-type hormones, on hair follicles.

Prevalence varies by ethnicity. Large population studies have reported AGA in around 19 to 21% of Chinese men overall, rising with age to over 40% in men aged 70 and over. In Chinese women, overall prevalence is around 3 to 6%. Korean men show similar patterns, with prevalence increasing from the third decade of life onwards. By comparison, Caucasian men have higher prevalence, reaching around 50% by age 50.

Asian populations tend to develop AGA a decade later than Caucasian populations and progression is often slower. Family history is also a strong predictor. In Chinese population studies, a positive family history was present in 29 to 56% of men with AGA, with paternal AGA having a stronger influence than maternal AGA.

AGA has also been associated in research with cardiovascular risk factors, particularly for men with crown-pattern baldness. Our dedicated article on hair loss and high blood pressure covers this in more detail.

AGA is a progressive condition. There is no complete cure, but the progression can often be slowed, and in many cases partly reversed, with appropriate treatment. Treatment is most effective when started early.

Alopecia Areata

Alopecia areata is an autoimmune condition in which the immune system attacks hair follicles, causing patchy hair loss. The classic presentation is a smooth, round patch of complete hair loss, most often on the scalp but sometimes in the eyebrows, beard, or other body hair.

The condition is less common than pattern baldness but not rare. Estimates of lifetime risk range from about 0.1 to 2%, depending on the population and methodology used. Large systematic reviews have reported that prevalence is highest in the Asian region.

Alopecia areata affects both sexes and can begin at any age, though onset is most common between 19 and 50.

The cause is not fully understood. Genetic susceptibility, psychological stress, and environmental triggers such as infections are all thought to play a role.

Prognosis varies widely. In many cases, hair regrows on its own within months. In others, the condition is more persistent, can recur, or progress to more extensive forms.

More extensive forms include alopecia totalis, which is complete scalp hair loss, and alopecia universalis, which is complete body hair loss.

Because alopecia areata is an autoimmune condition, treatment is different from treatment for pattern baldness. Assessment by a doctor is important, as is checking for associated autoimmune conditions such as thyroid disease.

Thyroid, Menopause, Pregnancy, and PCOS

Hormones have a significant influence on the hair growth cycle. Changes in hormone levels, whether due to thyroid disease, reproductive-life events, or conditions such as PCOS, can all affect hair.

Thyroid-related hair loss is typically diffuse, meaning it is spread across the whole scalp rather than patchy or pattern-based. Hair usually regrows after thyroid hormone levels are normalised with treatment, though this can take several months and may be incomplete in long-standing cases.

During pregnancy, higher oestrogen levels prolong the growing phase of the hair cycle. After delivery, hormone levels drop sharply, and a large proportion of follicles enter the resting phase at once. This is called postpartum telogen effluvium. It is usually temporary, but persistent or severe shedding warrants assessment.

PCOS is the most common endocrine disorder in women of reproductive age. PCOS-related hair loss is often accompanied by irregular periods, acne, and metabolic changes, and management usually involves both hormonal assessment and treatment of the hair loss component.

Illnesses and Medicines That Can Cause Hair Loss

A wide range of medical conditions and medications can cause hair loss as part of their clinical picture or as a side effect.

• Chronic illness and nutritional deficiency. Severe illness, surgery, anaemia, iron deficiency, vitamin D deficiency, and inadequate protein intake can all cause telogen effluvium. Hair usually recovers once the underlying issue is treated.
• Cancer treatment. Many chemotherapy drugs cause anagen effluvium, which is a different form of rapid, extensive hair loss. Hair typically regrows after treatment ends, though texture and colour can sometimes change.
• Other medications. Certain blood pressure medications, blood thinners, some antidepressants, retinoids, gout medications, and hormonal medications can cause hair shedding in some people.

Medication-induced hair loss usually begins 2 to 4 months after starting the drug. It typically presents as diffuse shedding rather than patchy loss, and is often reversible once the cause is identified and managed with medical supervision. Our dedicated article on blood pressure medications and female hair loss covers this in more detail.

Scalp Infections and Hair Loss

Some scalp infections can cause hair loss. These include tinea capitis, also known as scalp ringworm and caused by dermatophyte fungi, bacterial folliculitis, and, less commonly, scalp candida infections. The hair loss is usually patchy and accompanied by other scalp symptoms such as scaling, redness, itch, or pustules.

In most cases, hair regrows fully after the infection is treated. The exception is when chronic inflammation has caused scarring, which can result in permanent hair loss. This is why persistent scalp symptoms should be assessed early rather than self-treated.

For more detail on the scalp infection category, see our guide to fungal infections and hair loss.

Stress, Nutrition, and Hair Care Habits

Significant physical or emotional stress can push a large proportion of hair follicles into the resting phase all at once. Shedding typically becomes noticeable 2 to 3 months after the triggering event. Common triggers include severe illness, surgery, major bereavement, sudden weight loss, and intense psychological stress.

In most cases, stress-related shedding, or telogen effluvium, is self-limiting and hair regrows within 6 to 12 months after the trigger resolves. Chronic, ongoing stress can lead to longer-lasting shedding.

Hair growth is metabolically demanding and depends on adequate intake of protein, iron, zinc, biotin, and other micronutrients. Deficiencies, particularly iron and vitamin D, are common findings in women with persistent shedding. Blood tests can identify deficiencies, which are generally correctable with dietary adjustment or supplementation under medical advice.

Hair styling practices that apply persistent tension to the hair, such as tight ponytails, braids, buns, and hair extensions, can cause traction alopecia over time. Early traction alopecia is reversible if the causative styling is discontinued. Long-standing traction alopecia can progress to permanent, scarring hair loss.

The Spectrum of Hair Loss Treatments

Treatment choice depends entirely on the underlying cause. A medication useful for pattern baldness will not cure alopecia areata. An antifungal will not help pattern baldness. This is why accurate diagnosis matters more than any single treatment.

Several non-surgical, in-clinic procedures aim to stimulate hair follicles. Low-Level Laser Therapy uses red-light wavelengths to stimulate follicles and has been studied for pattern hair loss. Regenera Activa is a hair rejuvenation micrograft procedure that uses the patient's own tissue. Regenerative hair boosters are another option aimed at supporting follicle health.

Hair transplant surgery involves moving hair follicles from an area of stable growth to areas of thinning or balding. The most commonly used modern technique is follicular unit extraction, which is minimally invasive and leaves no linear scar. For more detail, see our guide to hair transplants in Singapore or our service page on FUE hair transplant surgery.

How to Choose a Hair Doctor in Singapore

When seeking help for hair loss, the following are worth considering:

To learn more about Dr Tan's training, qualifications, and published research, see her full profile.

Frequently Asked Questions