Many small blood spots on the legs, you need to observe whether the small blood spots are raised and whether there is obvious discoloration after the skin is pressed, if they are flat with the skin or mildly raised and do not discolor after pressing, it may be a simple purpura disorder. This condition can expand rapidly and unite into patches to form large bruises, which may be allergic purpura or thrombocytopenic purpura, it is recommended to go to a local hospital for a clear diagnosis of blood tests. After the legs are stimulated, squeezed and rubbed by the outside world, it is also easy to cause the subcutaneous capillaries to rupture, which will cause the blood in the capillaries to accumulate under the skin and easily appear small blood spots. The progressive pigmented purpura dermatosis is also prone to similar symptoms. It is recommended to choose oral compound rutin tablets and topical hydrocortisone butyrate cream to improve the symptoms.