There is a spot on my head where hair doesn't grow, what's going on?

Many people may have encountered this situation before, that is, there is suddenly an area on the head where hair stops growing. Generally speaking, there are many reasons for this phenomenon. It may be caused by too much mental stress, or it may be caused by too much work pressure and life pressure. It is best to go to the hospital for a check-up. You must pay attention to not staying up late, eat less spicy and stimulating food, and relieve stress appropriately.

Analysis of types and symptoms of alopecia areata

Hair loss is divided into occasional alopecia areata and habitual alopecia areata. Occasional alopecia areata refers to a one-time event that will never recur after recovery. But habit is troublesome. Not only do the attacks occur frequently, but they also often change location, size and position.

Most of the cases we usually see are occasional alopecia areata. Generally, if you eat a healthy diet and relax, the hair will recover naturally and grow back in three to six months, so there is no need to worry.

Based on the epidermal sampling and analysis of friends with spots, it is found that the scalp often has no bacterial infection and symptoms after hair loss, and the hair follicle structure is intact and functions normally. The epidermis and dermis, the tissue structure are all the same as before. So generally it will recover after a while.

The current mainstream view is that alopecia areata is caused by sudden abnormalities in the human body, which may be caused by mental illness, disease, endocrine disorders, or external poisoning. This causes the body to regard part of the hair follicle tissue as an external invader, causing the white blood cells and phagocytes in the body to attack the hair follicles in an area, causing damage to the hair follicles and eventually hair loss. This error occurs suddenly and rapidly, usually lasting from a few hours to 1 or 2 days. As the anomaly disappears. White blood cells and other organs stop attacking and everything returns to normal. The hair follicle cells enter a slow recovery process and gradually grow hair after a period of time. This causes the hair loss phenomenon called alopecia areata.

Analysis of the causes of alopecia areata

Chemical attack

Due to local skin contamination by chemical substances, chemical damage occurs or local tissue properties are changed. Leading to hair loss. Chemical damage needs to be neutralized through epidermal cell metabolism before it can be eliminated. In severe cases, chemical erosion marks will be left on the epidermis and cause deep damage.

Friends need to pay attention to their surroundings on the one hand, and on the other hand, find out whether there are similar cases of alopecia areata in nearby areas. Is the probability and number of people affected higher in this area than in other areas? If necessary, you can change your living environment or even live in a different city to see if the situation gets better.

Mental stress causes

Drastic emotional changes in a short period of time can lead to abnormalities in the body's endocrine and glandular secretions, ultimately causing hair loss.

We know that in ancient times there was a phenomenon of turning hair white overnight or losing hair overnight. And huge mental stress itself can cause a lot of hair loss in a short period of time. Therefore, we need to pay attention to our emotional changes. It does not necessarily have to be major mental fluctuations. Sometimes smaller mental fluctuations like a startle, a small shock, surprise, or contemplation are also possible. We need to pay attention.

Local allergy

Caused by unidentified skin allergy. If it is an epidermal allergy and there are no other symptoms, most people tend to ignore it. Even if hair falls off in other places, it is not easy for us to find it. Due to different physical conditions, the skin's resistance to the outside world varies. Just like when you apply capsaicin, some people feel pain, some have redness and swelling, and some feel nothing. Alopecia areata may be caused by the epidermis coming into contact with certain substances in a short period of time. It may be fine for other people, but it may affect your skin and cause hair loss.

So we need to be aware of our surroundings and all the materials we come into contact with. These substances can be any solid or liquid. Keep good records. We can then do an allergen check to identify the real allergen.