REASONS FOR HAIR LOSS:

When it comes to finding reasons about why an individual loses his or her hair, there are plenty of reasons that are available.

• Excessive Stress/ Hormonal Changes :

People can have hair fall due to excessive stress as well pollution. There are people who lose hair because of hormonal changes and other hereditary problems.

• Drug medications, lack/excess of vitamins or minerals :

They sometimes causes hair loss. Drugs used to treat high blood pressure, heart problems, depression, or gout; chemotherapy or radiation treatment for cancer patients; unusually high levels of vitamin A or low levels of iron or protein; for women, birth control pills can cause hair loss.

• Diseases/Infection :

Thyroid disease severe infection, or flu; fungus infections such as ringworm of the scalp can also result in hair loss.

• Childbirth :

For women, childbirth may cause temporary hair loss due to the changes that take place in the body. In some cases, adults or children may have a condition known as trichotillomania, in which there is a compulsion to pull out scalp hair, eyebrow hair, or eyelashes.

• Telogen Effluvium :

It is a common type of diffused hair loss among women. With telogen effluvium, thinning hair or hair shedding is caused when majority of scalp hair are shifted into the Telogen phase of the hair growth cycle. This means that more hair is in the resting stage than usual, and fewer hair follicles are available to grow new hair in the Anagen phase. This slows down the hair growth cycle and results in a gradual shedding of hair.

• Chemotherapy-Induced Alopecia :

Chemotherapy is thought to cause hair loss by attacking rapidly diving cells in the body, including the dividing hair matrix cells, one of the fastest growing cell populations in the human body. It most commonly affects the scalp, although armpit and pubic hair, eyebrows, and eyelashes may also be lost.Chemotherapy forces growing follicles into the catagen stage. The hair shaft doesn’t develop properly, so the hair breaks and falls out. The cause of hair loss associated with molecularly targeted agents has not been thoroughly investigated.Eventually, when chemotherapy is over, the follicles regenerate. Healthy, new hair regrows eventually. Though in the short term, chemotherapy causes near total hair loss.

• Alopecia Areata :

It is an autoimmune disease where sometimes a person’s immune system attacks the cells of the growing hair bulb.The exact cause of alopecia areata isn’t known. However, it most often occurs in people who have a family history of other autoimmune disorders, such as type 1 diabetes or rheumatoid arthritis. Just as in chemotherapy, hair follicles are forced into the catagen phase. Hair breaks and falls out, usually in patches scattered across the scalp.Sometimes the immune system attacks only the hair bulb. In this case, the hair follicles regenerate when the immune system is brought under control.Alopecia areata is not related to a more serious condition known as cicatricle alopecia, in which the immune system attacks the stem cells in the bulge of the follicle. This results in permanent hair loss.