Thyroid, Pregnancy,Illness

Thyroid

Thyroid imbalances can produce significant changes in hair growth and hair quality (15). In
the UK approximately 2% of women and 0.1% of men are affected. Only a blood test can
diagnose this condition. The frequency of hypothyroidism (under active thyroid) increases
significantly after the menopause, when up to 10% of women may be affected.
Pregnancy
It is well established that following childbirth 50% of women experience post-natal hair loss
and this usually regrows without intervention. In those few women where it does not other
reasons can normally be found. The precise cause of post-natal hair loss is unknown
although some hormonal and nutritional factors have been identified. If you suffered in one
pregnancy you may not after a second or subsequent pregnancy and vice versa (16) .
Illness
General health disturbances can cause increased hair shedding 10 to 12 weeks after the start
of the problem. The hair loss usually continues for a week or longer than the time of the
illness. No treatment is required unless other complications develop. Sometimes additional
shedding ensues due to the medication(s) given, or if prolonged fever is associated with the
illness.