what illness besides cancer can cause severe loss of hair
A variety of conditions can cause hair loss, including: Hormonal changes. Hormonal changes and imbalances can cause temporary hair loss. This could be due to pregnancy, childbirth or the onset of menopause. Hormone levels are also affected by the thyroid gland, so thyroid problems may cause hair loss.
Different types of hair loss may have different causes. Common causes of hair loss include: 1  Ringworm of the scalp, which is common in children.  Mental stress or physical stress, such as recent surgery, illness, or high fever. You may have a lot of hair loss 1 to 3 months after severe physical or emotional stress. Your hair usually will grow back within a few months.