Alopecia (hair loss)

hair loss

What Is Alopecia Areata?

Medically known as Alopecia, hair loss may be noticed as shedding of hair, baldness, or hair thinning.

Hair loss can happen gradually, or quite suddenly, and sudden hair loss can be distressing for many patients. reason for hair loss contain hormonal factors, immune disorders, thyroid disorders, nutritional deficiencies, sudden changes in diet and lifestyle, medications you may be taking (including supplements) and other medical situation. Hair loss may be a difficult problem to solve and often more than one factor may be involved

Alopecia areata is a disease that reason hair to fall out in small patches. It develops when the immune system attacks the hair follicles, resulting in hair loss. Sudden hair loss may happen on the scalp and other parts of the body. The situation rarely results in total hair loss, or alopecia universalis, but it can prevent hair from growing back. When hair does grow back, it’s possible for the hair to fall out again. The extent of hair loss and regrowth varies from person-to-person.

There’s currently no cure for alopecia areata. However, there are treatments that may help hair grow back more rapidly and that can stop future hair loss. There are also resources available to help people cope with the disease.

What Are the Symptoms of Alopecia Areata?

The main symptom of alopecia areata is hair loss. Hair generally falls out in small round patches on the scalp. These patches are generally several centimeters or less. Hair loss might also happen on other parts of the body. You may first notice clumps of hair on your pillow or in the shower. However, other types of diseases can also reason hair to fall out in a similar pattern. Hair loss alone shouldn’t be used to diagnose alopecia areata.

In rare cases, some people may experience more extensive hair loss. This is usually an indication of another type of alopecia, such as:

  • alopecia totalis, which is the loss of all hair on the scalp
  • alopecia universalis, which is the loss of all hair on the entire body

The hair loss associated with alopecia areata is unpredictable and random. The hair may grow back at any time and then may fall out again. The extent of hair loss and regrowth varies greatly from person-to-person.

What Causes Alopecia Areata?

Alopecia areata is an autoimmune disease. An autoimmune disease develops when the immune system mistakes healthy cells for foreign substances. Usually, the immune system defends your body against foreign invaders, such as viruses and bacteria. If you have alopecia areata, however, your immune system mistakenly attacks your hair follicles. Hair follicles are the structures from which hairs grow. The follicles become smaller and stop producing hair, leading to hair loss.

Researchers don’t know what triggers the immune system to attack hair follicles, so the exact reason of this situation isn’t known. However, it most often occurs in people who have a family history of other autoimmune diseases, such as type 1 diabetes or rheumatoid arthritis. This is why some scientists suspect that genetics may contribute to the development of alopecia areata. They also believe that certain factors in the environment are needed to trigger alopecia areata in people who are genetically predisposed to the disease.