Many red dots on the legs, this depends on what this red dot is, the most important two diseases: one is allergic purpura, one is pigmented purpura mossy dermatosis, allergic purpura good development on the feet, legs, and then appear purplish red petechiae, then these dots with hand pressure will not fade, in addition often there are no symptoms, this situation is often and infection, allergies and so on have a certain This is often related to infection, allergy, etc. And there are some red dots on the legs like chili pepper, this situation is considered called pigmented purpura mossy dermatosis, often due to the long-term standing of the patient led to local point-like bleeding, will also show red dots. So red dots on the feet and legs should be analyzed for the specific disease and find the appropriate cause.