Hair fall happens because of chronic telogen effluvium, male pattern hair loss, cicatricial alopecia, certain medicines, other systemic diseases like iron deficiency, thyroid (yes it can happen in men also) etc. Will you be able to tell what is the reason for YOUR hair fall? No right... Therefore a thorough examination is needed by a certified allopathic dermatologist (no one else) to diagnose and thence treat you! If you'd like to get treated, visit a dermatologist near you. Else you will only be wasting time.
Visit a dermatologist near you (allopathic)
Do not use creams or 'treatments' suggested by friends or family or pharmacists