teen gray hair
Introduction
Introduction Young people have white hair, only a few whites at the beginning, and gradually increase. Juvenile white hair occurs in children and adolescents, and often has a family history. Except for increased white hair, it does not affect your health. 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.
Cause
Cause
White hair is caused by the production of melanin due to less melanocytes, melanosomes or decreased tyrosinase activity. Early gray hair or white in the elderly has a family history, manifested as autosomal dominant inheritance, and can also be found in certain syndromes, such as progeria, Rothrnund syndrome and Werner syndrome, Waardenbur syndrome, muscle Dystrophic myotonia (dystrophia myotonia). 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.
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 less whiteheads. The most common people with such white heads often have a family history, often having white hair at birth, or hair being whiter than others. In addition, there are no other abnormalities.
The acquired nature is less white. 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 more than the average person Be whiter earlier; 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 lead to premature whitening of hair; Encephalitis, neurological diseases, etc. can also make the hair white; the skin, hair and eyebrows of patients with albinism are white; the whitening disease of the skin - "white hurricane", if it occurs on the scalp, the hair will turn white; Others believe that the more the brain is used, the earlier 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.
Examine
an examination
Related inspection
Blood test endocrine function test
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 stagnation and spleen: liver qi stagnation, damage and heart 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 rapidly during childhood. It includes albinism with whitening of systemic hair and mottled disease with localized whitening of hair.
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.
Diagnosis
Differential diagnosis
Progeria, Rothrnund syndrome and Werner syndrome, Waardenbur syndrome, dystrophia myotonia Modern medicine believes that white hair is mainly caused by decreased hair melanin formation and weakened melanin production by melanocytes. The activity of tyrosinase is reduced. 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.
