When a woman experiences a traumatic, physical event or undergoes surgery, for example, some of her hair might fall, as the hair cycle is shocked and jumps to the shedding phase. Hair loss could also result from emotional stress and anxiety.
Often after delivering a baby, a woman will experience some hair loss. The hair will soon grow out again, as it is a natural phenomenon.
According to the American Academy of Dermatology, taking too much Vitamin A supplements could trigger hair loss.
Since hair is made of a type of protein called keratin, the lack of protein in a person's diet could lead to weakening and falling of hair. See also List of food options that strengthen hair
Some women may experience female-pattern hair loss, which is a genetic condition that leads to thinning of hair and hair loss. See also Why your hair doesn't grow
Hormonal changes or imbalance could lead to hair loss. These changes could be a result of birth-control pills, menopause or a thyroid gland problem.
Some women might experience hair loss as a result of iron deficiency, as hair loss is one symptom of anemia.
One cause of hair loss is Vitamin B deficiency, which can be reversed by including fish, meat, vegetables and non-citrus fruits in your diet.
Some autoimmune diseases such as lupus and alopecia areata result in noticeable hair loss that appears as round patches.
Losing weight dramatically could result in hair loss and thinning hair, which is due to the stress the body is subjected to.
Subjecting the hair to harsh treatments and heat styling could result in weakening the hair and leading it to fall out. Aggressively brushing the hair and tying it very tightly are also reasons for hair loss. See also Why keratin hair treatment is bad for you
Some medications could lead to hair loss such as antidepressants, anticonvulsants and thyroid medications.
Some older people experience hair loss as a result of the natural aging process that the body goes through. See also Why do we develop grey or white hair