Hair Fall: Real Causes, What Works and What's a Waste of Money

Few things cause as much quiet panic as seeing a clump of hair on the pillow or in the shower drain. In Bangladesh, that panic feeds a huge market of miracle oils, herbal shampoos and 'hair vitamins' — most of which do nothing, because they never address why the hair is falling. Before spending money, it is worth understanding what is normal, what is treatable and what is simply marketing.

How much hair fall is actually normal?

Losing 50 to 100 hairs a day is completely normal — old hairs shed so that new ones can grow, and you notice them most on wash days. Hair fall becomes a problem when you see clearly more than before, when the scalp starts showing through, when your ponytail feels thinner, or when hair comes out in patches. The pattern and timeline of the loss tell a doctor far more than the daily count.

The real causes of hair fall

• Genetic pattern loss: the commonest cause in both men (receding hairline, thinning crown) and women (widening centre parting). It runs in families and progresses slowly.
• Shedding after illness (telogen effluvium): two to three months after dengue, typhoid, COVID, any high fever, surgery or childbirth, hair can shed dramatically. It looks alarming but usually regrows fully within months.
• Nutritional deficiency: low iron — very common in Bangladeshi women; see our anaemia and iron-rich diet guide — low vitamin D, and crash dieting with too little protein.
• Thyroid and hormonal problems: both over- and under-active thyroid cause diffuse hair loss, as can PCOS in women.
• Traction and chemical damage: tight ponytails and buns, frequent rebonding, bleaching and hot styling tools weaken and break hair.

What actually works against hair fall?

Treating the cause works — which is why a diagnosis matters more than any product. Iron or vitamin D supplements help only the people who are actually deficient, thyroid treatment reverses that type of loss, and post-fever shedding recovers on its own with time and good nutrition. For genetic pattern loss, clinically proven doctor-prescribed treatments do exist and work best when started early; a dermatologist can choose what suits you. Whatever the cause, a daily diet with enough protein — eggs, fish, dal, milk — gives hair the raw material it needs.

What is mostly a waste of money?

Random onion oils, secret herbal mixes and expensive 'hair growth' supplements bought without any diagnosis rarely help, because they do not touch the underlying cause. No oil can change your genes or fill an iron deficiency. Multivitamins sold as hair vitamins are only useful if you actually lack those vitamins — taking them blindly mostly produces expensive urine. Be especially wary of unlicensed salon 'treatment packages' and of unknown creams or solutions applied to the scalp.

Gentle care while your hair recovers

• Wash 2-3 times a week with a mild shampoo; a clean scalp does not increase hair fall.
• Oil, if you like it, works as a conditioner — massage gently, because aggressive rubbing breaks hair.
• Avoid tight hairstyles, very hot water, rough towel-drying and combing soaking-wet hair.
• Limit rebonding, straightening, bleaching and hot styling tools.
• Look after sleep and stress — both genuinely affect the hair growth cycle.

When should you see a doctor?

See a dermatologist if hair fall continues beyond about three months, or sooner if anything looks unusual — early treatment protects far more hair than late treatment. Book an appointment promptly if you notice:

• Round bald patches, or loss of eyebrows or eyelashes
• Redness, scaling, pain or itching of the scalp along with the hair loss — possible scarring types that need urgent care
• Sudden, very heavy shedding without an obvious trigger
• Hair loss with weight change, tiredness, irregular periods or other body symptoms

A doctor may check haemoglobin, iron, thyroid and vitamin D before treatment — you can find a registered dermatologist on ChamberBD and book online.

This article is for general health education and is not a substitute for professional medical advice.