White spots on the scalp of a child

If a child develops white spots on the scalp when he is young, it is relatively easy to detect because the child's hair is relatively short, making it easy to see abnormalities on the scalp. The appearance of white spots is related to many factors, so parents should not treat them indiscriminately, as this may easily cause other damage to the body. The best way is to find out the cause of the disease and then treat it.

Pictures of early symptoms of scalp vitiligo in children?

The symptoms of vitiligo include :

1. The lesions are pure white, round or irregular patches of hair loss. The hair inside may turn white or remain normal, but there are no other changes in the skin and no subjective symptoms. The surface is smooth, the boundaries are clear, and the edges are hyperpigmented.

2. Most of the white spots are distributed symmetrically, and many are arranged along nerve segments (or dermatomes). In addition to skin damage, some mucous membranes may also be affected. The number of white spots is variable and may be limited to a certain part of the body or distributed in a certain nerve segment (or dermatome). They rarely change or disappear on their own. However, in most cases, they tend to gradually increase and expand, and may even spread throughout the body.

3. What cannot be ignored is the isomorphic reaction among the symptoms of vitiligo. The isomorphic reaction of vitiligo refers to a phenomenon in which white spots begin to appear locally or expand after skin inflammation or trauma. It is listed as one of the excitation factors of vitiligo. Most of the white spots induced by the isomorphic reaction are confined to the site of inflammation or trauma, and gradually expand to the surrounding areas. White spot lesions may also gradually occur on normal skin in distant parts.

Causes

The cause of this disease is still unclear. Recent studies have shown that this is related to the following factors :

1. Genetic theory

Vitiligo can occur in twins and families, indicating that heredity plays an important role in the onset of vitiligo. Studies have shown that vitiligo has incomplete penetrance and there are multiple pathogenic sites on the gene.

2. Autoimmunity theory

Vitiligo can be combined with autoimmune diseases such as thyroid disease, diabetes, chronic adrenal insufficiency, pernicious anemia, rheumatoid arthritis, malignant melanoma, etc. Specific antibodies to various organs can also be detected in the serum, such as anti-thyroid antibodies, anti-gastric parietal cell antibodies, anti-adrenal gland antibodies, anti-parathyroid antibodies, anti-smooth muscle antibodies, anti-melanocyte antibodies, etc.

3. Psychological and neurochemical theory

Mental factors are closely related to the onset of vitiligo. Most patients suffer from mental trauma, excessive tension, depression or frustration during the onset or development of skin lesions. The degeneration of nerve endings in the white spots also supports the neurochemical theory.