Once you damage a hair follicle, hair cannot grow from that follicle. Having many damaged hair follicles creates permanent bald spots.
Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of heredity, hormonal changes, medical conditions or a normal part of aging. Anyone can lose hair on their head, but it's more common in men.
It depends. “If a follicle has closed, disappeared, scarred, or not generated a new hair in years, then a new hair wouldn't be able to grow,” Fusco says. But if the follicle is still intact, yes, it is possible to regrow the hair—or to improve the health of the existing thinner hairs.
There is currently no cure for alopecia areata, although there are some forms of treatment that can be suggested by doctors to help hair re-grow more quickly. The most common form of alopecia areata treatment is the use of corticosteroids, powerful anti-inflammatory drugs that can suppress the immune system.
Bald spots of the scalp, brow, or beard are commonly caused by a medical condition called alopecia areata. It is also commonly called spot baldness, and it is believed to be an autoimmune disorder that causes the body's immune system to mistake hair follicles for foreign invaders, and then, attack them as such.
Once you damage a hair follicle, hair cannot grow from that follicle. Having many damaged hair follicles creates permanent bald spots.
In many cases, bald patches regrow by themselves without treatment. In particular, if there are just one or two small bald patches then many doctors would advise that you simply leave it alone at first. If the hair loss is not too bad then there is a good chance that your hair will regrow after several months.
Causes of Alopecia Areata
In alopecia areata, the immune system mistakenly attacks hair follicles, causing inflammation. Researchers do not fully understand what causes the immune attack on hair follicles, but they believe that both genetic and environmental (non-genetic) factors play a role.
Most people know alopecia to be a form of hair loss. However, what they don't always know is that there are three main types of the condition – alopecia areata, alopecia totalis and alopecia universalis.
Alopecia areata frequently presents as the sudden onset of smooth, round, hairless patches on the scalp. The affected areas are usually skin-colored but may have a peach color. Occasionally, there are scattered short colored or white hairs within the hairless patch.
After hair stops shedding, the hair will slowly grow back. This can take 6 to 8 months for all the hair to grow back. The whole cycle takes about 12 months. This type of hair loss is called telogen effluvium.
The first sign of alopecia areata is often a round or oval bald patch on the scalp.
Unfortunately, male and female pattern baldness is not reversible without surgical intervention. However, if detected early enough, certain medications, such as minoxidil, finasteride, and Dutasteride can help halt the progression of thinning hair.
Make an appointment to see your doctor if: You suddenly develop a bald spot on your scalp. Your hair stylist tells you that your hair is thinning, or that you have small bald areas. You have lost your eyebrows or eyelashes, your beard is thinning, or you have noticeably less hair on your underarms or pubic area.
There is no cure for AA. While treatments may promote hair growth, new patches of hair loss may continue to appear. The treatments are not a cure. Only the body, itself, can eventually turn off the condition.
If you damage your hair follicles after an injury, they can repair themselves and your hair will grow back. It could take up to four years before you see new hair growth out of damaged hair follicles, depending on the severity of your injury.
Alopecia areata (AA) is an organ‐specific autoimmune disorder. Defective immune system related disorders are prone to increase the risk of cancer formation. However, the association among AA and variety of cancer types had never been studied.
Alopecia areata isn't usually a serious medical condition, but it can cause a lot of anxiety and sadness. Support groups are out there to help you deal with the psychological effects of the condition. If you lose all your hair, it could grow back.
A variety of factors are thought to cause alopecia areata (al-o-PEE-she-uh ar-e-A-tuh), possibly including severe stress. With alopecia areata, the body's immune system attacks the hair follicles — causing hair loss.
In most people, new hair eventually grows back in the affected areas, although this process can take months. Approximately 50 percent of people with mild alopecia areata recover within a year; however, most people will experience more than one episode during their lifetime.
On the AIP elimination diet, you will avoid grains, legumes, nightshades (such as potatoes and peppers), dairy, eggs, coffee, alcohol, sugar, oil and food additives. After a few months, you can work the excluded foods back in one at a time to figure out which foods trigger an inflammatory reaction.
Calcipotriol, a vitamin D analog, has been reported to be topically used in treating alopecia areata with promising results. Combination therapy of vitamin D analogs with corticosteroids might also be used in treating alopecia areata.
Most bald spots are treatable, there are hair products for bald spots, either using medication, by making changes to your lifestyle or by undergoing surgery to transplant hair to the area that's affected by hair loss.
New patches may spread by joining existing bald patches. These larger bald areas can appear while hair is regrowing in older hairless patches. Loss of hair can be permanent in some cases. Hair follicles may deteriorate, but oil producing glands in the skin (sebaceous glands) usually change very little.
The extent of alopecia (how much hair has fallen out) varies and links to the different subtypes. Some said their hair loss involved one small patch about the size of a 1p coin which regrew after a few weeks or months. Others developed more patches which sometimes joined up into bigger bald areas over time.