The 13-year-old boy has been having red spots on the palm of his hand, which is painless and itchy may be caused by conditions such as nevus erythematosus, subcutaneous hemorrhage and autoimmune diseases.
1. Nevus erythematosus: nevus erythematosus is a flat plaque composed of countless dilated capillaries, which belongs to congenital capillary malformations and manifests itself as erythema of the skin, which is painless and itchy. The area of the lesion of this disease increases with the growth of the body and does not subside throughout life.
2. Subcutaneous hemorrhage: when a 13-year-old boy has erythema in the palm of his hand and it is painless and itchy, he should pay attention to whether it is thrombocytopenic purpura or allergic purpura and other subcutaneous hemorrhage.
3. Autoimmune diseases: such as dermatomyositis and systemic lupus erythematosus. When suffering from dermatomyositis, there can be hyperkeratotic lesions on the hands, which can be accompanied by hyperpigmentation, cracks, etc., and occasionally extended to the palm of the hand, the metacarpophalangeal joints can also appear flat purplish-red rash. In the case of systemic lupus erythematosus, the patient may be manifested as red painful nodules on the palms, perinail erythema and other conditions.
13-year-old boy palms have been erythema, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.