Causes of hair problems.
First, your doctor will try to determine the underlying cause of your hair loss. The most common cause of hair loss is hereditary male- or female-pattern baldness.
If you have a family history of baldness, you may have this type of hair loss. Certain sex hormones can trigger hereditary hair loss. It may begin as early as puberty.
In some cases, hair loss may occur with a simple halt in the cycle of hair growth. Major illnesses, surgeries, or traumatic events can trigger hair loss.
Hormonal changes can cause temporary hair loss. Examples include:
Medical conditions that can cause hair loss include:
- thyroid disease
- alopecia areata (an autoimmune disease that attacks hair follicles)
- scalp infections like ringworm
Hair loss can also be due to medications used to treat:
A physical or emotional shock may trigger noticeable hair loss. Examples of this type of shock include:
- a death in the family
- extreme weight loss
- a high fever