Telogen effluvium

Hair goes through a cycle. It grows, then it rests. Most hair rests for a short time. Then it falls out naturally.

Sometimes, hair falls out too fast. This can happen when you are stressed. It can happen if you are sick. It can even happen after a baby is born.

This makes the hair look thin. The hair is in its resting phase. It falls out more than usual.

Some people lose hair in seasons. This is like how animals shed coats. It can also happen from certain drugs.

Doctors can test your scalp. They want to see why it happens. Most hair will grow back.

Hair grows in a cycle. It has a resting phase. We call this phase telogen. Most people lose about 125 hairs every day. This is normal. It does not change how you look.

Sometimes, hair sheds too fast. This is called telogen effluvium. It makes hair look thin. This happens when hairs enter the telogen phase too early.

Many things can cause this change. Stress can change the hair cycle. Being sick or having surgery can also do it. Some people lose hair after having a baby. This is due to pregnancy hormones.

There are different ways the cycle changes. Some hairs stay in the growing phase too long. Other hairs skip the growing phase. Some drugs can make hairs fall out quickly. Even the seasons can cause hair loss in some people.

Doctors use tests to find the cause. They may look at the scalp. They might take a tiny piece of skin. This is called a biopsy. Some treatments can help. Some products make hair strands thicker. This can make hair look fuller.

Hair grows in a steady cycle. Most people lose about 125 hairs every single day. This is normal and does not change how you look. However, some people experience a scalp disorder called telogen effluvium. This condition makes hair look thin or shed too much. It happens when hairs enter the telogen phase too early. The telogen phase is the resting phase for a hair follicle.

There are five ways the hair cycle can change. First, immediate anagen release happens when follicles leave the growing phase early. This change becomes visible two to three months later. Second, delayed anagen release is common during pregnancy. Pregnancy hormones keep the growing phase going longer. This leads to heavy hair shedding after the baby is born. Third, short anagen syndrome makes the growing phase too short. This is often the cause of chronic hair loss.

Other changes involve the resting phase itself. Immediate telogen release can happen because of certain drugs. For example, a drug called minoxidil can cause this. This causes a large release of club hairs. Delayed telogen release means the resting phase lasts too long. This can happen during certain seasons. In animals, this helps them shed winter coats. Humans might also see seasonal hair loss.

Many things can cause this hair cycle change. Emotional or physical stress is a major factor. This includes things like major surgery or chronic illness. Eating disorders and crash diets can also play a part. Other causes include anemia or hypothyroidism. Doctors use tests to find the exact cause. They may use a trichogram or trichoscopy. They might also perform a biopsy. A biopsy is taking a tiny piece of skin to look at.

Some treatments can help make hair look fuller. New cosmetic products use many different ingredients. One mix uses caffeine, niacinamide, panthenol, dimethicone, and an acrylate polymer. This is called CNPDA. This mix can increase the diameter of hair fibers. It can grow hair by 2 to 5 micrometers. This makes the hair look about 10% thicker. It also makes the hair more supple and strong.

Telogen effluvium is a scalp disorder that causes hair thinning or shedding. This condition occurs when hair follicles enter the telogen phase too early. The telogen phase is the resting stage of the hair follicle. Under normal conditions, humans lose about 125 hairs per day. This daily loss is a standard part of the hair cycle. It typically has no effect on a person's overall appearance. However, in telogen effluvium, hairs shed at a much higher rate than usual.

There are five specific ways the hair cycle can change to cause this. The first is immediate anagen release. This happens when follicles leave the anagen, or growing, phase prematurely. The stimulation to enter the telogen phase happens too soon. These effects usually become visible two to three months after the initial change.

The second type is delayed anagen release. This is most commonly associated with pregnancy. During pregnancy, hormones can prolong the anagen phase. This causes the hair to stay in the growing stage longer than usual. When the pregnancy ends, it results in synchronous and heavy postpartum hair shedding.

Short anagen syndrome is the third type. This involves a shortening of the duration of the anagen phase. Because the growing phase is shorter, a greater number of hairs are in the telogen phase at any one time. This makes it difficult to grow hair long. This mechanism is responsible for the majority of chronic cases of telogen effluvium.

The fourth type is immediate telogen release. This often occurs due to certain drugs that shorten the telogen phase. For example, the drug minoxidil can precipitate this reaction. When the telogen phase is shortened, follicles reenter the anagen phase prematurely. This process causes a massive release of club hairs, which are hairs in the telogen stage.

The fifth type is delayed telogen release. In this case, the telogen phase is prolonged. This leads to a delayed transition back to the anagen phase. This pattern is seen in animals with synchronous hair cycles. It helps them shed their winter coats during specific seasons. Humans may also experience similar seasonal hair loss.

Many factors can trigger these changes in the hair cycle. Emotional or physiological stress is a major cause. This includes major surgery, chronic illness, or severe emotional disorders. Physical causes include eating disorders, crash diets, and anemia. Hypothyroidism is another medical cause. Pregnancy and childbirth are also significant factors.

Doctors use several diagnostic tests to verify a diagnosis of telogen effluvium. They may perform a trichogram or use trichoscopy to examine the hair. They might also perform a biopsy, which is taking a small sample of the scalp. This helps distinguish the disorder from alopecia totalis. In telogen effluvium, histology shows telogen hair follicles in the dermis with minimal inflammation. In contrast, alopecia totalis shows a dense peribulbar lymphocytic infiltrate.

Some cosmetic treatments can help manage the appearance of thinning hair. One combination uses caffeine, niacinamide, panthenol, dimodimethicone, and an acrylate polymer. This is known as CNPDA technology. This treatment can increase the diameter of individual hair fibers by 2 to 5 micrometers. This results in an increase of approximately 10% in the cross-sectional area of each hair. These thickened hairs also show better mechanical properties. They have increased suppleness and a better ability to withstand force without breaking.