Why my hair is falling off ?

See a dermatologist.: With so little information and no clinical examination it is impossible to give you meaningful advice. You need to see a dermatologist for a proper consultation in order to move forward with a diagnosis and treatment.

See doctor: Or see dermatologist. Treatment depends on the cause. There are many possible conditons: due to male pattern balness, chemotherapy, after pregnancy , stress, autoimmune conditions, chemical on hair, fungal infection, syphillis etc......

See your doctor: There are too many causes for this. You need to see your primary care physician to start figuring out the cause, then you can treat appropriately. Common causes include: iron deficiency, mineral/electrolytes deficiency, malnutrition, rapid weight loss, hormonal imbalances, genetic, infections, drug side effects, toxins...

Many reasons. : Thryoid problems can cause hair loss. Nutritional deficiencies--biotin, magnesium, zinc- can also cause hair loss. Is it in one area or all over? If it is falling out in patches, you need to see a dermatologist. Finally stress--physiologic- such as an illness, surgery, pregancy , can cause hair loss about 6 months later. See your doctor. It can be a sign of another systemic illness.