Yellowish hair

Introduction Lack of certain trace elements. For example, iron deficiency anemia can lead to hair malnutrition; copper deficiency can reduce the function of tyrosinase and affect the metabolism of melanin; zinc deficiency will affect cell development and growth, and hair will naturally yellow. From the physiological characteristics of the hair, there is a hair salon at the root of each hair, and there are hair keratinocytes and hair pigment cells around it. Once these cells are disturbed or damaged, the black hair will turn yellow. . Shampooing or shampooing with alkaline soaps, especially shampoos that use too much oil to remove hair, can remove sebum that protects hair. At the same time, the alkaline shampoo has a strong stimulation on the scalp epithelial cells, causing it to over-progress, resulting in yellowing of the hair.

Cause

Hypothyroidism; high malnutrition; severe iron deficiency anemia and major illness, resulting in a decrease in melanin in the body, causing the lack of basic substances in black hair, and the black hair gradually turns yellowish or pale yellow. In addition, often perm, shampoo with alkaline water or washing powder, will also damage the hair yellow. The following are dietary therapies for yellow hair caused by several causes.

(1) Malnutrition yellow hair:

Mainly caused by high levels of malnutrition.

(2) Acidic yellow hair:

Increased acid toxins in the blood are also associated with overwork and overeating of sweets and fat.

(3) Copper deficiency yellow hair:

There is a lack of an important copper-containing "tyrosinase" in the process of hair melanogenesis. Insufficient copper in the body affects the activity of this enzyme and causes the hair to turn yellow.

(4) Radiation yellow hair:

Long-term exposure to radiation, such as computer, radar and X-ray work, yellow hair.

(5) Functional yellow hair:

The main causes are trauma, fatigue, seasonal endocrine disorders, drug and chemical stimuli that cause melanin and melanocyte production disorders in the body.

(6) pathogenic yellow hair:

Because of certain diseases, such as iron deficiency anemia and serious illness, the hair can turn from black to yellow.

an examination

Related inspection

Trace element blood test in human body

The examination of the yellowish hair is mainly to observe that the patient's hair is yellow, dull, and split, and the tip position of the hair first appears. When the hair is yellow, boring, split, etc., the hair can be properly nourished. Generally, the hair is yellow and boring is the performance of nutrition. At this time, it is generally accompanied by the lack of trace elements in the body. It can be taken to the hospital to check the level of trace elements in the body, and then targeted supplementation through diet or auxiliary drugs.

Differential diagnosis

Dry hair: dry hair, also known as dry hair, dry hair and so on. It is dull due to lack of moisture, even dry coke, easy to fall, often accompanied by dry skin. The main ingredient of hair is a protein containing sulfurous amino acids, so daily intake of protein-rich foods such as fish, lean pork, milk, dairy products and soy products. Dry hair is caused by the dry scalp (the sebum secretion of the scalp is not enough). Experts recommend taking vitamin A to replenish hair (note the prescribed intake). Frequent combing of hair accelerates blood circulation and sebum secretion.

Hair abnormalities: Hair abnormalities can be generally classified into: hair loss, alopecia, hirsutism, hair discoloration, hair deformity, and hair deterioration. The cause can be divided into congenital, hereditary, primary, acquired, iatrogenic and traumatic.

The hair is light and brown: in patients with phenylketonuria, the inhibition of tyrosinase reduces melanin synthesis, so the hair of the child is pale and brown. Phenylketonuria (PKU) is a hereditary disease caused by a deficiency or loss of activity of phenylalanine hydroxylase (PAH) in the liver. It is more common in hereditary amino acid metabolism-deficient diseases.

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