Tractional alopecia this is most commonly found in people who wear their hair in a tight ponytail and people who habitually pull at their hair.

Traumas, such as chemotherapy, head surgery, post child birth and severe stress.

Iron deficiency – This is common and can cause thinning of the hair, this is simple to diagnose and treat.

Some infections can cause severe hair loss.

Hypothyroidism can cause hair loss, typically frontal on the head and also loss of eyebrow hair.

Hyperthyroidism can also cause hair loss but in a different pattern to hypothyroidism.

Autoimmune disorder, Alopecia areata can cause ‘spot baldness’ usually in one area but in severe cases the person can loose all hair on the body.

Hair loss often follows childbirth. The hair usually becomes thicker during pregnancy due to increased circulating oestrogens. Post pregnancy, the oestrogen levels go back to pre pregnancy levels and the additional hair drops out.

Trichotillomania is the loss of hair caused by compulsive pulling and twisting of the hairs.

Temporary loss of hair can occur in areas where sebaceous cysts are present for several weeks.