Losing hair can be a distressing experience, whether it is gradual or relatively sudden. Unfortunately, there are many unverified miracle cures out there, so it can be hard to know where to turn. The important thing is to turn to your GP first of all.
We all lose hair, but if you notice that you are losing more than you would ordinarily expect, it is perhaps time to speak to your GP. They will investigate and diagnose and will hopefully be able to identify the cause, at which point you can consider what your next step should be.
Quite often, your GP will refer you to a dermatologist. While dermatology is primarily concerned with the skin, this branch of medicine does include hair, because the hair follicles reside in the skin. It is also possible to contact a consultant dermatologist directly without referral from your GP.
By speaking with an NHS consultant dermatologist, you can be sure that you are getting the best and impartial advice. NHS practitioners are governed by the General Medical Council and are therefore duty-bound to act in your best interests.