Why do people lose hair? Hair loss, hair loss self-test method
Let's learn to identify the difference between hair loss and hair loss, and talk about the causes of hair loss. Finally, we have to answer your question: Can hair grow back if it falls out?
A while ago, GQ Magazine interviewed Dou Jingtong and asked her what her troubles are. Dou Jingtong, the daughter of Faye Wong and Dou Wei, is talented and has a promising future. What else can he worry about? Dou Jingtong's answer is: There is too little hair, and I want beautiful hair. She said that she always shaved her head and had short hair when she was young. Later, I found out that I had little hair, which was very close to my scalp. I am particularly worried that I might die at the age of 30.
Many celebrities are troubled by the shifting of the hairline and have hair loss problems. Hair loss has nothing to do with looks. No matter how beautiful or handsome it is, the hairline is moved back, which is quite upsetting.
In modern society, there are more and more people suffering from hair loss, regardless of age or sex. According to the "Hair Loss Population Survey" released by the China Health and Education Association, in 2017, about 130 million men and 70 million women had hair loss in China. If you add up the roof area of the male compatriots, it is almost 4,725 square kilometers. How big are 4725 square kilometers? It's the size of 1.5 Hangzhou!
The population with hair loss is not only increasing steadily, but the age of hair loss is also steadily decreasing. Big data found that the post-90s generation accounted for 36.1% of consumers who purchase hair transplant and hair care products on the Ali retail platform, which is about to surpass the post-80s generation, which accounts for 38.5%. People are bald before they are old. If a person is not rich, his hair will fall first.
One morning you woke up and suddenly found a few hairs on the pillow. You are very nervous: Did I start to lose hair? How to do it! When Zhenzhen was in the clinic, she often encountered patient consultation: I found out that I was losing my hair. Is this considered hair loss? Am I "hair loss" or "hair loss"?
In this lesson, Zhenzhen teaches you a way to judge. You can simply test: Is it "hair loss" or "hair loss."
In fact, the hair that grows on our body is collectively called "hair". Hair is distributed in a wide range, except for the palms, soles, and mucous membranes, there are hairs on all skins, and there are also hairs in the ears. Hair is a type of hair.
Hair is constantly growing and getting longer every day, and on average it can grow 1 cm per month. But hair also has a lifespan, each hair can live for 3 to 4 years. Once it exceeds 3 or 4 years, it will stop growing and fall naturally, and new hair will grow where it fell. We Asians, with an average of 50,000-70,000 hairs, lose 50-100 hairs every day. Please note that losing 50-100 hairs a day is normal hair loss, not hair loss, don’t worry!
What about hair loss? If you find that you lose more than 100 hairs a day, and the hair on the top of your head gradually becomes thinner, you have to suspect that you may be losing your hair.
Here, Zhenzhen provides you with six typical symptoms of hair loss. If you find anyone, please be more vigilant:
More than 100 hairs fall out in a day
The hair at the top of the head is obviously thinner than the hair at the back
You can see the scalp from the thinning hair
Hair color is lighter than before, and it doesn't grow long
The amount of hair falling on the pillow when waking up gradually increases
When you comb or wash your hair, your hair will fall off more easily than before
Again, if you find any symptoms, please pay attention to them!
Above, Zhenzhen teaches you how to determine if you are losing your hair. After knowing whether you are losing your hair, you may be anxious to ask: What should I do if I lose my hair, unfortunately?
Don't worry, in order to treat hair loss, we must first know the cause of hair loss. The causes of hair loss are complex. Genetic factors, lifestyle habits, physical health, physical fitness, etc. may all lead to hair loss. Therefore, only by finding the cause of each person's hair loss, can we effectively prevent hair loss.
In medicine, abnormal hair loss is referred to as the phenomenon of temporary hair loss or hair loss due to pathological symptoms or genetic factors that are beyond the range of natural alternation of physiological hair loss. There are many reasons for abnormal hair loss.
In layman's terms, hair loss is actually the death of hair follicles. Hair follicles are very fragile, and they can easily hang up without paying attention. There are roughly four reasons for hair follicle necrosis:
First, scalp diseases. Hair grows on the scalp. If there is a problem with the skin of the scalp, it will definitely cause necrosis of the hair follicles-hair loss. Some common diseases of the scalp, such as seborrheic dermatitis, are excessive oil production, which stimulates the hair follicles and causes hair loss. There is also folliculitis, which is inflammation of the hair follicles, which affects hair growth and also causes hair loss. In addition, all scalp-related problems, such as dandruff, can cause hair loss.
Second, the mental pressure is high. Before the exam or when taking a new project, in addition to stress and fat, it is also particularly prone to hair loss. Why is this? Excessive mental stress can cause the erector pili muscles of the human body to contract and the hair to stand up. The blood vessels of the head muscles are congested, blood circulation is not smooth, and the hair follicles cannot get nutrients, so they are "starved to death." Hair loss due to mental stress, topical shampoo has no effect, you must relax your mind and assist with therapeutic intervention. What is more serious is people with mental illness, such as children and depressed patients, who will unconsciously scratch their hair. They rarely scratch their hair when there are people next to them, but when they are alone, they have to pull their hair. Although the hair follicles of this kind of people have not shrunk, they have more short hairs. As long as their mental state is stabilized, they won't lose their hair.
The third cause of hair loss is an endocrine disease, common androgen, and menopausal secretion disorders. Hair loss caused by androgens is particularly common among boys. Because body hair has a lot to do with androgens, we will talk about it in detail later. Girls have a lot of hair loss during menopause.
The fourth reason is malnutrition. Long hair also needs nutrition. If it lacks minerals, vitamins, and protein, the hair cannot get nourishment and will not grow naturally. People who lose weight unscientifically, or who are in the poor physical condition and have an unhealthy diet, often have symptoms such as dry hair, easy breakage, and gray hair. At this time, external care can only strengthen the hair's toughness, and supplementation of nutrients can solve the fundamental problem.
In addition to the four main types mentioned above, there are also some reasons, I said you will be very easy to understand. Such as heredity and fertility. Women are prone to hair loss when they are pregnant and have children, but they usually recover within one or two years. There is also a knotty hair loss that occurs frequently in women. It is caused by excessive pulling of the hair or excessive irritation of the hair, such as frequent dyeing of the hair.
After understanding the "causes of hair loss," Zhenzhen still has to answer one of the most concerned questions: Can the hair that has fallen out "grow out"?
Hair loss is different for each person, so whether or not the hair that has been lost can grow back also varies from person to person.
Hair grows from the follicles to fall out in three stages: growth phase, anagen phase, and telogen phase. The growth period is generally two to seven years, during which period it will maintain a state of continuous growth. The second stage is the anagen phase, which means that it doesn’t grow anymore. Hair loss may be easy at this time, usually two to three weeks. The third stage is the resting period, which is normally three to four months. Of course, in addition to hair, the hair on other parts of our body, such as eyebrows, eyelashes, and leg hair, is divided into these three stages, but their growth cycle time is different, so they will not grow as long as hair. many.
Okay, let's go back to the problem of hair loss. When we do not rest well, eat badly, have a bad mental state, have problems with the environment, or take some medicine, and have problems with the scalp, the hair growth cycle will change. For example, there should be 100 hairs in the growth phase, but due to poor physical condition, only 50 hairs are in the growth phase, and the remaining 50 hairs are in the retrograde or even telogen phase. At this time, you will feel that more hair is falling. Became sparse.
Most of the hair loss problems caused by neurological stress are temporary hair loss. If not treated in time, the symptoms will last for a long time. At this time, as long as proper intervention and treatment are carried out, the hair will grow back, so don't worry too much.
If you find that you are losing too much hair, you have to reflect on whether you are under too much stress or excessive weight loss, and your physical condition is not good, causing your body's balance to be disrupted. Because the human body tissues are stimulated, the number of hair follicles will decrease, and a lot of hair will fall off when washing or combing. Although the density of the scalp is reduced, the hair does not become thinner. The most important thing is to work hard to get rid of the pressure.
Some people do not lose their hair but have the habit of pulling out their hair. If you control yourself not to pull your hair, you can grow it. I once saw a child who had normal eyebrows and hair elsewhere, with very little hair. After the examination, it was found that the child was somewhat withdrawn, unwilling to communicate with others, and kept pulling his own hair. The mother did not realize this, and though the child was malnourished and could not grow hair. There is no problem with his hair follicles. After adjusting these habits, hair will naturally grow out.
For example, in middle-aged men, hair loss caused by hormones will cause hair follicles to shrink and die if left alone. At this time, any shampoo may not be effective. We must pay attention to it immediately when the symptoms of hair loss first appear, such as excessive hair loss, or excessive dandruff, and sudden itchy hair, and take medication before hair follicle necrosis.