Alopecia
Areata
A sudden, patchy loss of hair caused by an autoimmune response. Affecting one in a thousand people, it can range from small patches to total hair loss — but treatment is often very effective.
What is Alopecia Areata?
Alopecia Areata is characterised by sudden, patchy hair loss caused by many follicles prematurely entering the telogen (resting) phase. It falls under the category of autoimmune disorders and affects as many as one in a thousand people at some point in their life.
In severe cases it can develop into Alopecia Totalis (total scalp hair loss) or Alopecia Universalis (total body hair loss).
What are the most common causes?
- Physical trauma or head injury
- Local skin injury
- Genetic predisposition
- Viral or bacterial infection
- Pregnancy and hormonal changes
- Allergies or chemical exposure
- Seasonal changes
Are you genetically predisposed?
Studies show a higher incidence of Alopecia Areata in genetically related individuals. Certain genes appear more commonly in people with the condition compared to the general population, suggesting some people are predisposed from birth.
Pregnancy and hormones
Researchers have long recognised the link between hormonal fluctuations and Alopecia Areata. Women who develop the condition may experience temporary hair regrowth around the time of childbirth. Puberty and menopause may also trigger onset or remission.
Can it be treated?
Yes — depending on the severity and stage, treatment can be very successful. Hair specialists at St Mary's assess each case individually and recommend the most appropriate treatment plan. Early intervention significantly improves outcomes.