What is the cause of dandruff?

  Dandruff may seem small, but it has a great impact on our lives. Why is there a lot of dandruff in winter time? What are the causes of dandruff?
  Dandruff is the response of the scalp to external stimuli. Stimulation of the scalp can lead to changes in the inner layers of the skin, bringing about itchy scalp, dry scalp and red scalp with itchy and flaky scalp. Stimulation also accelerates the metabolism of skin cells, and these immature cells collect on the surface of the scalp and become visible as dandruff.
  There are many causes of excessive dandruff, which are divided into two main categories: one is caused by dry scalp; the other is dandruff triggered by fungus, and most dandruff is due to this cause.
  Introduction of dandruff
  Everyone has dandruff, but normal natural flaking is a product of normal physiological metabolism of the scalp, which happens to everyone, and generally falls off in tiny particles less than 0.02mm, so it cannot be observed by the human eye and will not affect people’s normal life and work.
  While when dandruff appears white or gray scales, it is likely to be due to fungal infection, this kind of dandruff is medically known as scalp furuncle, a kind of skin disease caused by Malassezia (a kind of fungus). The proliferation of Malassezia on the scalp causes excessive proliferation of the scalp stratum corneum, thus prompting the abnormal shedding of the stratum corneum cells in the form of white or gray scales, and such shed scales are dandruff. This kind of scale particle is larger and attached to the surface layer of scalp or hair, and it is very easy to fall off to the shoulder clothes when combing or scratching the hair.
  The main reasons for more dandruff
  1.Physiological reasons, dandruff is produced by the general skin dirt, that is, the constant flaking surface of the epidermis’ keratin layer, which is also the result of metabolism.
  2, the influence of dandruff bacterium, in the sebaceous gland distribution parts, there is a dandruff bacterium microorganism, when normal, coexist peacefully with people, but when some people sometimes suddenly lose resistance to this microorganism, which leads to dandruff bacterium to make the sebum secretion exuberant to produce dandruff.
  3, scalp cell dysfunction, the elderly, malnutrition, patients receiving chemotherapy or dry ringworm, due to the metabolic process of the scalp cell lesions, so that the scalp cell maturation process is incomplete, resulting in flaky scalp flaking.
  Other causes of dandruff
  In addition to the above-mentioned 3 main physiological reasons, there are other causes of dandruff caused by some other bad habits, such as the following.
  1, when washing hair, the shampoo is not rinsed clean, or the use of bad shampoo or other bad beautifying products with too strong degreasing power;
  2, the scalp secretes too much sebum, mixed with dust and other things, and over time, dandruff is formed when it is finished.
3.Inappropriate diet, drinking alcohol, and stimulating food, gastrointestinal disorders, unbalanced nutrition, lack of vitamin A, B6, B2;
  4.Lack of vitamin B in the body can also lead to more dandruff.
  5.In addition, some external factors such as climate change, frequent consumption of stimulating food, lack of sleep, excessive alcohol consumption, excessive mental stress, hormonal imbalance and poor blood circulation in the body can cause excessive dandruff.
  Who is prone to excessive dandruff?
  Dandruff mostly occurs in middle and young people, and less in children and the elderly. What is the reason for this: middle and young people are in the most vigorous period of life, and their busy work, mental stress, less normal rest time and good diet, coupled with the pollution of the environment, etc., will make dandruff increase.
  Then how to remove dandruff?
  1.Wash your hair correctly
  Light dandruff does not need special treatment, and some of them are even just the residue from hair spray or the flakes accumulated from shampoo.
  In addition, for people who have a lot of dandruff but the situation is light, it is not necessary to use shampoos with strong anti-dandruff effect, but only common anti-dandruff shampoos can be used. At the same time, it is also important to note that all shampoos with anti-dandruff effect will contain the ingredients of drugs, if you use too much, it will damage our scalp Oh!
  2.Scalp massage
  In addition to simple daily care and scalp massage, massage can raise the temperature of the head skin, accelerate blood circulation and metabolism, so that the sebaceous glands, sweat glands, hair follicles and other appendages of the scalp can perform normal functions, thus reducing dandruff.
  Patients take a sitting position, with bilateral or unilateral fingers and palms from the forehead hairline to the occiput back and forth rotation massage, round-trip 30 times, until the scalp has a sense of heat.
  One hand four fingers (index finger, middle finger, ring finger, pinky finger) bend together into 90 degrees, from the hairline backward gently knock, round-trip do 10 times, so that the head has a sense of relaxation is good.