Alopecia areata

The medical term for hair loss is alopecia. This is the most common form of autoimmune skin disorder that can cause hair loss on your head. Often, it starts with small patches and continues to expand.
This condition affects more than 2% of the population and nearly 5 million people in the U.S. alone. Since it is a skin disorder, alopecia is typically diagnosed by a dermatologist. Thankfully, it does not come with any rash, hives or itching. That said, exposed skin does need to be cared for. Though the condition has been labeled an autoimmune disorder, studies have shown that it can be trigger or exacerbated by stress.
Hair normally grows at the rate of a fourth to half an inch each month. the repeating hair growth cycle can be interrupted by disease, genetics, medications and other environmental factors. When hair is in the anagen growth phase the follicle grows until the catagen phase that slows the growth. Then, the telegen phase lets the follicle rest until the cycle begins again. The new follicle that begins to grow will cause the old follicle to shed. At any given time about 10% of your hair follicles are in the resting phase.
So, what is an autoimmune disorder? The body has certain defense systems it uses to protect itself. The immune system can sometimes turn on itself and begin to defend against the body itself. When immune response is mistaken or misdirected it is called auto immunity. Alopcia occurs when your body attacks your hair follicles.
There are different types of alopecia. Alopecia tolalis is the type that causes total hair loss on the head. if hair loss extends to the body it is called alopecia universalis. The other, alopecia areata cause random patches of hair loss. In all forms of alopecia hair re-grwoth is possible.

Overview
If you are experiencing hair loss chances are good that you are wondering what has caused it. Many people instantly assume that hair loss is caused by genetics. The fact is, hair loss can be caused by a number of different things. In fact, in many cases a person may be experiencing hair loss caused by more than one factor. Once you are aware of the most common causes of hair loss it will enable you to better treat the condition so you can restore a normal head of hair and prevent future hair loss.
Hair re-growth in women is very different from hair re-growth in men. That is why it is important to know more about the causes of hair loss in women and what helps trigger hair re-growth. Once you have a better understanding of these things you will better be able to choose hair re-growth products for women. It is important to remember that no two hair re-growth products are created equally and some work better than others for different types of hair loss.
Before you go out and invest in a hair re-growth product for men it is important to understand hair loss and re-growth in relation to men. The fact is, hair loss in men can be caused by different things, and not all hair re-growth products for men cover all your bases. If you understand the most common causes of hair loss in men it will enable you to make a more educated decision when it comes to choosing hair re-growth products.