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.
The first sign of alopecia areata is often a round or oval bald patch on the scalp.
Alopecia areata affects people of all ages including young children. It produces circular patches of hair loss that appear overnight. More patches appear over time and eventually about 5% of people affected lose every hair on their body.
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.
What causes alopecia areata? Alopecia areata is an autoimmune disease. This means that your immune system mistakenly attacks a part of your body. When you have alopecia areata, cells in your immune system surround and attack your hair follicles (the part of your body that makes hair).
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.
How Long does Hair Loss Last? In half of patients with alopecia areata, individual episodes of hair loss last less than one year, and hair grows back without treatment. These patients may experience recurrent episodes of hair loss that spontaneously regrow or respond quickly to treatments.
The condition can develop at any age, although most people develop alopecia areata for the first time before the age of 30. Alopecia areata is not life-threatening and does not cause physical pain.
The Ludwig scale defines three broad stages of hair loss. In stage 1, the hair on the top of the head begins thinning. In stage 2, the scalp starts to become visible. In stage 3, all of the hair at the crown may be lost, resulting in baldness.
Ways to Stop Alopecia Areata from Spreading or Worsening
Avoiding unnecessary hair or scalp trauma, reducing stress and analyzing your diet are all worthwhile endeavors when attempting to prevent alopecia areata from spreading.
Patchy hair loss (alopecia areata)
In the type of patchy hair loss known as alopecia areata, hair loss occurs suddenly and usually starts with one or more circular bald patches that may overlap.
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.
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.
Telogen effluvium hair loss — the type of hair loss linked to stress — typically affects your scalp and may appear as patchy hair loss. However, it can also cause you to shed more body hair or notice less hair on your body than you normally would.
Prolonged periods of stress can result in telogen effluvium. Hair loss typically occurs about 3 months after the stressful event.
Sudden Loss of Patches of Hair
Bald spots may grow very slowly in one area or you may notice a patch or strip of hair loss that appears within just a day or two. In some cases, you may notice burning or stinging before sudden hair loss.
Can a Blood Test Detect Alopecia? Yes, a blood test can diagnose alopecia. Your doctor may order several blood works to determine the cause of the hair loss along with a scalp biopsy.
Your dermatologist will examine the area(s) with hair loss carefully and look at your nails. Your dermatologist will also ask some questions. This may be enough to diagnose you. Because there are so many reasons for hair loss, testing is sometimes necessary to make sure alopecia areata is the cause of your hair loss.
A deficiency in vitamin D can be linked to many different types of autoimmune disease—including alopecia areata. This study found that vitamin D deficiency was a risk factor for developing alopecia areata and that a significant number of patients with this condition had low levels of vitamin D.
If you are experiencing thinning or balding, our Bosley experts recommend washing no more than three times a week.
Ketoconazole shampoos help treat Alopecia by cleaning the skin area around your hair follicle of sebum, or the skins natural oils that are produced. Getting rid of these oils can allow your hair follicles to receive more nutrition and release for your hair to regrow.
Thankfully, mild cases of alopecia areata often get better without treatment within a few months to a year. In some cases, patchy baldness may come and go over many months or years. The size of the bald patch or patches and how long they last are quite variable.
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.