1, caused by nervous dysfunction
In women with excessive mental stress, heat toxin accumulates in the body, the hairy muscles of the body contract, and the function of autonomic nerve or central nervous system is disordered, which leads to insufficient absorption of nutrients by hair follicles and milk, which affects the normal growth speed of hair, and easily leads to hair dormancy, resulting in severe hair loss.
2, caused by endocrine abnormalities
Human hair growth is affected by blood heat, women often stay up late, irregular diet and many other factors lead to endocrine abnormalities. For example, when hormone secretion in the body is disordered, it is easy to have severe hair loss, the most common ones are hirsutism and androgenic alopecia.
3, the body caused by malnutrition.
Whether hair growth is normal or not is the external manifestation of physical condition. When the body lacks nutrition, the most direct manifestation is hair loss, blood heat blockage, malnutrition and abnormal metabolism, which can all cause changes in hair quality and hair color. When severe malnutrition occurs, frequent hair loss is the most direct manifestation.
4, frequent perm and hair dyeing.
Excessive perming and dyeing is a common cause of severe hair loss, because there are a lot of chemical components in the agents for dyeing hair, which are easy to erode the scalp, destroy the pH balance of scalp skin, lead to hair color change, burn hair follicles, and cause serious hair loss.
5, caused by disease infection
There are many systemic diseases or local diseases that can cause frequent hair loss; In addition, due to the influence of diseases, women's blood heat accumulates too much, leading to various pathogens including viruses, bacteria, fungi, spirochetes and parasites, which makes hair loss more and more serious.
6, caused by improper hair care
Some women like to wear hats, but wearing hats for a long time will oppress scalp blood vessels and affect blood circulation, especially in summer when the weather is hot. Wearing hats will easily hinder the scalp from sleeping together, which will lead to hair loss over time.
7. Detailed explanation of the causes of hair loss
1, mental factors
Many patients often have a history of mental trauma, anxiety and tension before the onset. If patients are examined, it is often impossible to find the basis for the existence of visceral diseases.
2. Drug factors
Some chemotherapy drugs, such as cyclophosphamide, fluorouracil, bleomycin, actinomycin D, vinblastine, colchicine, Cephalotaxus alkaloids and cytarabine, can cause alopecia. Poisoning by arsenic, thallium and selenium can also cause serious hair loss.
3. Nutritional factors
The decrease of food intake can delay hair growth. If the content of protein in food is reduced, even if the total amount of food is normal, hair growth can be inhibited. Low fat or no fat can cause baldness, while excessive intake of fat can lead to excessive hypertrophy and hyperfunction of sebaceous glands, which will affect hair growth.
If you lack vitamin A, your hair will fall off before, while if you lack vitamin B, it will lead to dry hair and lack of color. And the lack of zinc and iron will cause hair loss.
4. Autoimmune factors
Some studies believe that autoimmunity plays a certain role in the pathogenesis of alopecia areata. T cells infiltrate in the lower part of hair follicles in alopecia areata, and autoantibodies such as anti-thyroid and anti-gastric parietal cells can be detected in the serum of some patients.
5. Congenital factors
Hair loss or thinning caused by congenital factors such as developmental defects, various syndromes, Alzheimer's disease, etc. Hair follicle dysplasia causes hair to be soft and easy to break. Congenital alopecia is an autosomal dominant genetic disease, which is more common in the offspring born of close relatives.
8. How to care for hair loss
1, frequent shampooing, control of hair oil and drug treatment.
2, rest more, hair will grow back after physical recovery or drug withdrawal.
3. Do not use irritating hair dyes, perms and inferior shampoo.
4. Don't use nylon combs and nylon head brushes that are easy to generate static electricity. Wear protective caps and wash your hair in time in an environment with serious air dust pollution.
5. Strengthen nutrition and eat more fruits and vegetables, kelp, mulberries and walnuts.
6. Eat less greasy food and strengthen physical exercise.
9, prevent hair loss diet
1. supplement iron. People who often lose their hair often lack iron. Iron-rich foods include soybeans, black beans, eggs, hairtail, shrimp, cooked peanuts, spinach, carp, bananas, carrots and potatoes.
2. Supplement plant protein. Hair is dry and cracked, so you can eat more foods such as soybeans, black sesame seeds and corn.
3. Eat more fresh vegetables and fruits containing alkaline substances. One of the factors of hair loss and hair yellowing is that there are acid toxins in the blood, which is caused by physical and mental fatigue and long-term overeating of pure sugar and fatty foods, which causes acid toxins in the body's metabolism. Acidic substances in foods such as liver, meat and onion can easily cause too many acid toxins in the blood, so eat less.
4. Supplement iodine. The luster of hair is related to the function of thyroid gland. Iodine supplementation can enhance the secretion function of thyroid gland, which is beneficial to hair bodybuilding. You can eat more kelp, seaweed, oysters and other foods.
5. supplement vitamin e. Vitamin E can resist hair aging, promote cell division and make hair grow. You can eat more fresh lettuce, cabbage, black sesame and so on.
10, how to wash your hair and prevent hair loss
1: First, comb your hair with a comb, which can remove dust, dirt and dandruff from your hair, and also achieve the effect of massaging your scalp. Many girls always complain that they lose a lot of hair when washing their hair, mainly because there is no need to comb their hair first.
2. Before using shampoo, rinse your hair at a water temperature close to body temperature, which can wash away 70% of dirt and grease. Wash not only the hair, but also the scalp.
3. Most people like to rub shampoo directly on their hair, but it is wrong now, which will increase the burden on scalp skin. You should rub the foam with your hands first and then apply it to your hair.
4: If styling products are used on the same day, first apply foaming shampoo to the part from the middle to the end of the hair for cleaning. This shampoo won't wash the scalp, so wash off the remaining styling products first.
5. Then clean it thoroughly with warm water. The first cleaning is mainly to clean the residual modeling products.
6. Then shampoo for the second time, take a proper amount of shampoo and fully foam it, rub the foam on the head and gently massage the scalp with your fingertips.
7: Wash with warm water for 2 ~ 3 minutes, and then gently squeeze the excess water with both hands as shown in the figure. People with short hair can comb all their hair back.
8. Hair scales will be in an open state. At this time, if you vigorously dry with a towel, your hair will be damaged. You should use a towel to gently dry your hair by clamping it. Then use the conditioner. The conditioner only needs to focus on repairing the ends of the hair. If you find that the hair is knotted during rubbing, gently push it out with your fingers.
9. The hair scales just washed will show an open state. At this time, don't vigorously rub them with a towel, and don't blow dry them with a hair dryer immediately, which will damage your hair. You should use a towel to clamp your hair and gently dry your hair.