Alopecia Areata is often the most drastic type of hair loss, Alopecia Areata presents a number of circular completely bald patches. These can sometimes merge with other patches The hair follicles are clearly visible and the earliest patch will often be re-growing fine, often white hairs from the centre of the patch.
It is regarded as an immune system problem. The body thinks that there is infection at the site of the hair follicles and sends white blood cells to the area to fight the non-existent infection. Unfortunately this causes the hair to fall out. Over 90% of sufferers recover but it can take a long time.
This condition is unpredictable and can last from six months to many years depending on the causative factors. When the hair loss covers the whole scalp it is termed Alopecia Totalis. When the whole body is affected it is called Alopecia Universalis