<s>[INST] DEAR SIR/MADAM,I AM SUFFERING FROM CONSISTENT HAIR LOSS SINCE 2 OR 3 YEARS AND MY SIBLINGS TOO, THOUGH MY PARENTS HAVE HEALTHY HAIR, I DO NOT FEEL THAT IT IS HEREDITARY.  WHAT CAN BE THE CAUSES?IS THIS IS SOMETHING RELATED TO DIET OR HYGIENE?PLEASE ENLIGHTEN ME. [/INST] Hello, Thank you for posting on Chat Doctor. I appreciate your concern regarding hair fall. Hair fall is usually ascribed to multiple factors like diet and nutrition, hormones, stress, acute or chronic medical conditions, Chat Doctor. Since you have not mentioned relevant history and description like sex, pattern of hair loss(patchy/diffuse), family history etc., It's difficult to put a definitive diagnosis. Still, it seems you are suffering from either An </s>