Alopecia Statistics
- Alopecia means hair loss.
- Alopecia may affect only the scalp or the whole body.
- As a condition, alopecia can be temporary or permanent.
- Alopecia can result from heredity, hormonal changes, medical conditions, or aging.
- Alopecia is more common in males.
- Baldness means excessive hair loss from the scalp.
- Hereditary hair loss is the most common cause of baldness.
- Most men prefer don’t treat their hair loss with treatment and let it run its course.
- The receding hairline is also known as frontal fibrosing alopecia.
- Sudden hair loss is an indication of underlying medical conditions that requires treatment.
- People lose approximately 50 to 100 hairs a day.
- Alopecia occurs when new hairs don’t grow out.
- Studies show that there’s a correlation between smoking and baldness in men.
Alopecia Areata Statistics
- Alopecia areata occurs when the immune system attacks hair follicles, causing hair loss.
- Alopecia areata is considered an autoimmune disease that causes hair loss.
- Alopecia areata affects hair on the head and the face.
- Hair tends to fall out in small, round patches about the size of a large coin.
- There is no cure for alopecia areata.
- There are treatments available to promote rapid hair growth.
- Alopecia areata affects men and women equally among all races and ethnic groups.
- Alopecia areata can occur at any age, but the condition is more common in teens, twenties, and thirties.
- Alopecia areata can also affect children younger than age ten years old.
- Genetics play a role in causing alopecia areata, and the condition can be passed down through generations.
- Most people with alopecia areata have no genetic predisposition.
- Certain autoimmune diseases, such as psoriasis, thyroid disease, or vitiligo, are more likely to cause alopecia areata.
- People with chronic allergic conditions such as hay fever are also prompt to get alopecia areata.
- Emotional stress, illness, and side effects of medications can bring on temporary alopecia areata in people at risk.
- There are three types of alopecia areata: patchy alopecia areata, alopecia totalis, and alopecia universalis.
- Patchy alopecia areata is the most common condition and comprises patchy hair loss.
- Alopecia unversalis is the rarest condition and entails complete hair loss from the head and body.
- Alopecia totalis means total hair loss from the scalp.
- Alopecia areata treatments include steroid injections, topical and oral medications.
- Alopecia areata’s diagnosis is based on the hair loss pattern and the patient’s medical history.
- A biopsy is sometimes needed to confirm the alopecia areata’s diagnosis.
Alopecia Statistics Worldwide
- Alopecia areata is found worldwide.
- 147 million people worldwide are affected by alopecia areata.
- It’s estimated that 1 in 1000 people worldwide suffers from alopecia areata. The lifetime risk is 2%.
- Alopecia areata affects as many as 6.8 million people in the U.S., with a lifetime risk of 2.1%.
- Children and adults may develop alopecia areata, and the disease occurs at similar rates in males and females.
- The mean age for diagnosis of alopecia areata is 32 years in males and 36 years in females.
- Alopecia areata is a polygenic disease, which means that both parents must contribute several specific genes for a child to develop it.
- In identical twins, there’s only a 55% chance that if one has alopecia areata, the other will, too.
- Scientists believe it takes more than genetics to cause the disease. Environmental factors also contribute to developing alopecia areata.
- Alopecia areata treatment is available to disrupt or distract the immune attack and/or stimulate hair follicle growth.
- Alopecia areata’s treatment is effective for people with less than 50% hair loss.
- For patients with more than 50% hair loss on their scalp or the body, there are oral and injectable medications available.
- In alopecia areata, our body’s defense system mistakenly attacks the hair follicles making hair fall out.
- Regrowth of hair may or may not occur.
- The gene responsible for alopecia universalis is located on the short arm of chromosome 8.
- Trichotillomania, or hair pulling, is a neurotic habit that usually appears in children and may lead to alopecia areata.
- Hypotrichiasis (hypotrichosis, alopecia congenitalis, alopecia adnata, congenital alopecia, congenital baldness) is a condition characterized by the absence of hair at birth.
- Alopecia medicamentosa is hair loss on the scalp caused by a reaction to drugs in sensitive or allergic people.
- Alopecia medicamentosa may also result from chemotherapy treatments.
- In 2022, the U.S. Food and Drug Administration (FDA) approved baricitinib (Olumiant) oral tablets as a treatment option for adult patients with severe alopecia areata.
- Baricitinib (Olumiant) is the first FDA approval of a systemic treatment for alopecia areata.
Sources: NIAMS, Mayo Clinic, WebMD, YaleMedicine, uptodate, naaf.org, rarediseases.org.