Hair loss is a common problem. But most of the people who suffer hair loss never understand why their hair is falling. It is a mystery for most of us. Because of not understanding, we try many therapies including different diets and natural formulations. But most of the times, we find no improvement. That is very disappointing and we accept the fact of hair loss and stop trying. This need not be done. Once we understand all the possible reasons of hair loss, we can surely find out what is happening to us and take an informed decision. Alopecia aerata is one of common causes of hair loss. Let us find out about that. Hair loss- what is alopecia aerata? Alopecia aerata is an autoimmune disease. In this disease the body attacks the hair follicles and kills them. The body begins to think that hair follicles are foreign objects and wants to remove them. Why it does that is a mystery. Hair loss pattern in alopecia aerata You may begin losing hair in coin size patches. Sometimes the loss will stop after a patch or two and re-grow there after some months. Sometimes the loss continues and you may lose all the hair. This hair may come back after some months. No body can predict about how you will lose hair and when you will get it again. If you have a family member who suffers from a autoimmune disease such as Atopic dermatitis, hay fever etc. your probability of getting alopecia aerata increases. There is no way to stop this hair loss. Only treatment can be done to get the hair back sooner. This article is only for informative purposes. This article is not intended to be a medical advise and it is not a substitute for professional medical advice. Please consult your doctor for your medical concerns. Please follow any tip given in this article only after consulting your doctor. The author is not liable for any outcome or damage resulting from information obtained from this article.