Alopecia areata, which is sometimes known as ‘spot baldness’ is a common cause of hair loss. It can affect any part of the body, but is most commonly seen to affect head hair. It generally only affects patches, but in around one or two per cent of cases, it will spread further.
Patches affected by alopecia areata are generally round, but can take any shape. Sometimes affected areas may prove a touch painful or can tingle slightly. Hairs in an affected region may be narrower near the scalp, tapering where growth is newest.
Alopecia areata is not a contagious condition, rather it seems likely that some people are genetically predisposed to it, as cases are more likely if family members have also suffered. It is an autoimmune disorder, meaning that the immune system is actually attacking the hair follicles, affecting and even preventing the growth of hair. The actual trigger for the condition is not known, although it is suspected to be related to emotional stress or some sort of germ.
If you start to lose hair, it is important that the first step you take is to see your GP who will most likely refer you to a consultant dermatologist. You can also arrange to see a consultant dermatologist directly. Make sure you see a qualified medical professional who will act in your best interests and will give you the best advice.