Hello,
Thanks for posting your query.

There are many causes of hair fall like stress, fungal infections, alopecia aereata, hormonal imbalance (overproduction of dihydrotestosterone and thyroid hormones irregularities), malnutrition, telogen effluvium and sebum plugs on skin.

Investigations which can be done to confirm the cause of hair loss, some of the important ones to be done are:

1)     Iron studies and thyroid function tests

2)     Testosterone and dihydrotestosterone levels

3)     Trichoscopy (in this hair and scalp structures may be visualized at many-fold magnification)

4)     Scalp biopsy

I suggest you to consult a trichologist and get these investigations done.
There are many medications to improve hair loss like finasteride, dutasteride and topically applied minoxidil but these are available only under prescription and after ruling out the other causes of hair loss.

Give your diet an overhaul if you're lacking vital nutrients for growth and switch to foods for healthy hair like food XXXXXXX in protein, vitamins(mainly vit A and vit C) and other micronutrient like zinc, iron and copper.

Hope this answers your query.

If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.

Wishing you good health.

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