Red spots on the hands are painless and itchy, which may be caused by hand-foot-mouth disease, purpura, cherry angioma and other diseases, and you should go to the hospital in time to find out the cause.
1. Hand, foot and mouth disease: an infectious disease caused by enterovirus infections, prevalent in children. The main manifestations are skin rashes and herpes on the skin and mucous membranes of the hands, feet, mouth, buttocks and other parts of the body. Herpes has less fluid inside and is painless and itchy, but when the rash develops herpetic changes, it can be accompanied by pain and itchiness. Early detection, early diagnosis, early isolation and treatment are needed to avoid cross-infection.
2. Purpura: Purpura is a kind of subcutaneous hemorrhage, petechiae of different sizes can appear in the upper limbs, which are purple or brownish-red in color, unevenly distributed, and do not fade away when pressed, and are not accompanied by itching and pain, at this time, it is necessary to clarify the primary disease, and at the same time, it is necessary to avoid unnecessary trauma and infections.
3. Cherry angioma: it is a kind of common benign acquired hemangioma, which occurs in middle-aged and old people. It mainly manifests in the proximal end of the limbs, showing bright red or purple-red papules, which are soft and can be discolored by pressure. Patients generally have no self-conscious symptoms, small lesions can be without special treatment, and larger lesions can be treated with high-frequency electrocautery excision or laser.
In addition, measles, second-stage syphilis rash and other diseases can also appear on the hands of long painless red dots, but only rely on this symptom is not enough to diagnose the disease, should pay attention to, it is recommended to timely consultation, if necessary, targeted treatment.