white hair
Introduction
Introduction to white hair White hair refers to the whitening of all or part of the hair, which can be divided into congenital and acquired. Congenital white hair often has a family history, with limited white hair is more common, more common in the front of the hair. Acquired white hair has both senile white hair and juvenile white hair. Some are young and weak and have few white hair. Juvenile white hair occurs in children and adolescents. It often has a family history. Except for increased white hair, it does not affect your health. White hair suddenly occurs in youth, and some are related to nutritional disorders. Mental factors can affect the whitening of the hair. White hair can be a symptom of certain diseases, such as premature aging, vitiligo and so on. basic knowledge Probability ratio: Susceptible people: no special people Mode of infection: non-infectious Complications: white hair, albinism
Cause
Cause of white hair disease
Genetic (25%):
Early gray hair or white in the elderly has a family history, manifested as autosomal dominant inheritance, also found in certain syndromes, such as progeria, Rothrnund syndrome and Werner syndrome, Waardenbur syndrome, muscle Dystrophic myotonia (dystrophia myotonia).
Disease factors (15%):
Severe diseases such as pernicious anemia, hyperthyroidism, cardiovascular diseases such as coronary heart disease, myocardial infarction, peripheral arterial disease, hypertension, tuberculosis, typhoid, syphilis, etc. may occur with white hair.
Physiological phenomenon (25%):
Gray or whitening of the aged hair is a physiological phenomenon caused by the progressive loss of tyrosinase activity in melanocytes, which causes the pigment in the hair shaft to disappear. The number of melanocytes in the gray hair is normal, but the melanin is reduced. The melanocytes in the white hair are also reduced.
Decreased tyrosinase activity (20%):
White hair is caused by the production of melanin due to melanocytes, less melanosome or decreased tyrosinase activity.
Prevention
White hair prevention
1. In the modern social environment, young people should learn mental health care and adjustment methods. They must learn from work, but also adjust to entertainment, work and rest, and strive to maintain a comfortable mood, avoid mental crisis, and psychological balance. It is essential to prevent early white hair.
2, adhere to physical exercise and enhance physical fitness.
3, pay attention to the quality of food, eat more foods rich in high-quality protein, trace elements and vitamins, choose fresh fish, milk, animal liver and kidney, black sesame, edible mites, seaweed, fresh vegetables and fruits, etc.
Complication
White hair complications Complications, white hair, albinism
It usually appears as a symptom of other diseases.
Symptom
Symptoms of white hair common symptoms congenital hypoplasia, spleen, wetness, blood heat, deficiency, blood, weak fatigue, anxiety
Modern medicine believes that white hair is mainly caused by decreased hair melanin formation, weakened melanin production by melanocytes, decreased tyrosinase activity, excessive emotional tension, excessive brain use, anxiety, panic, nerve trauma, etc. It may cause white hair. In addition, white hair may also appear in chronic consumptive diseases.
Congenital whiteheads, the most common of these white-headed people often have a family history, often born with white hair, or hair is whiter than others, in addition, no other abnormal performance.
There are many reasons for the lack of acquired whiteheads: malnutrition, such as lack of protein, vitamins and certain trace elements (such as copper), will make the hair white; some chronic wasting diseases such as tuberculosis, due to lack of nutrition, Hair is also whiter than the average person; some patients with long-term fever, hair will be yellow and brittle or even white off; some endocrine diseases, such as pituitary or thyroid disorders, can affect the ability of pigment cells to produce pigment particles and cause hair Premature whitening; encephalitis, neurological diseases, etc. can also make hair white; whitening patients' skin, hair, eyebrows are white; skin whitening disease - "white hurricane", such as occurs on the scalp, hair It will also turn white; others believe that the more the brain is used, the sooner the hair is white; some young people have a lot of white hair in a short period of time, which is related to severe trauma or mental fatigue caused by excessive anxiety and sadness.
Chinese medicine believes that the following factors are related to white hair:
First, the essence of blood and weak: kidney deficiency, can not be converted into yin blood, yin blood deficiency, leading to hair loss, and therefore white.
Second, blood heat is partial: emotional, resulting in water does not contain wood, liver and blood dry, blood heat is too strong, hair roots are dying, so it is early white.
The third is liver spleen and spleen: liver qi stagnation, damage to the heart and spleen, spleen injury and transport dereliction of duty, qi and blood biochemical passive, and therefore white hair.
Hereditary white hair is usually present at birth, or occurs rapidly during childhood, including albinism with whitening of systemic hair and mottled disease with localized whitening of hair.
Canments Senilis, white hair often starts from the two corners and develops chronically to the top of the head. After a few years, the beard and nose hair are also grayish, but the chest hair, pubic hair and mane are not white even in old age.
Young people or middle-aged people's white hair (Canities prematura), only a few whites at the beginning, and gradually increased.
In some diseases, such as vitiligo, Vogt-Koyanagi syndrome, Alezzandrini syndrome may have localized white hair.
Examine
Examination of white hair
Mainly for the primary disease selection auxiliary examination. Blood routine (blood image) examination: Blood routine examination is one of the most basic laboratory tests in the clinic. Blood tests include red blood cells, white blood cells, hemoglobin, and platelet counts. The blood routinely collects the finger blood or the peripheral blood of the earlobe by acupuncture. After dilution, it is dropped into a special calculation disk, and then the number of blood cells is calculated under a microscope. Common symbols on blood routine tests are: RBC stands for red blood cells, WBC stands for white blood cells, Hb stands for hemoglobin (hemoglobin), and PLT stands for platelets.
Diagnosis
Diagnosis of white hair disease
Modern medicine believes that white hair is mainly caused by decreased hair melanin formation, weakened melanin production by melanocytes, and reduced tyrosinase activity. Excessive emotional stress, excessive brain use, anxiety, panic, and nerve trauma may cause white hair. In addition, white hair may also appear in chronic consumptive diseases.
Congenital whiteheads: The most common people with such whiteheads often have a family history, often having white hair at birth, or hair being whiter than others. In addition, there are no other abnormalities.
Acquired less whiteheads: There are many reasons for this: malnutrition, such as lack of protein, vitamins and certain trace elements (such as copper), will make the hair white; some chronic wasting diseases such as tuberculosis, due to lack of nutrition, Hair is also whiter than the average person; some patients with long-term fever, hair will be yellow and brittle or even white off; some endocrine diseases, such as pituitary or thyroid disorders, can affect the ability of pigment cells to produce pigment particles and cause hair Premature whitening; encephalitis, neurological diseases, etc. can also whiten hair; whitening patients' skin, hair, eyebrows are white; skin whitening disease - "white hurricane", such as occurs on the scalp, hair It will also turn white; others believe that the more the brain is used, the sooner the hair is white; some young people have a lot of white hair in a short period of time, which is related to severe trauma or mental fatigue caused by excessive anxiety and sadness.
