The appearance of red blood spots on the skin of the body is usually one of two things. The first one is a red bleeding spot that appears as petechiae, ecchymosis. This condition is also known as purpura, which can be categorized as allergic purpura and stress purpura, eruptive purpura, etc. Allergic purpura it mainly occurs in the double lower limbs, the area is wider, and all the limbs will appear. Generally caused by allergy, or the presence of infectious conditions, such as tonsillitis, etc., the first step is to remove the cause of the disease, for the cause of the treatment, and then desensitization treatment. Another condition that appears as red dots is the size of a pinpoint, and large ones can develop into bean-sized red spots, or papules, also called cherry angiomas. This condition is caused by localized proliferation of capillaries formed by skin aging. So you can use the laser approach, because it is a benign lesion, can also be temporarily observed, do not need treatment.