The presence of bruising on the legs indicates that there is capillary bleeding under the skin of the legs. If you are a woman of childbearing age, for example, if you have unexplained bruises on your legs and there are no obvious abnormalities in your routine blood tests and coagulation tests, it is likely that you have a disease called simple purpura, which is related to changes in estrogen concentration. The unexplained appearance of ochre on the legs often brings greater psychological stress to women, and in this case only vitamin C treatment is needed with good results. At the same time, patients with allergic purpura will also have the situation of bruising on the legs, which is due to the capillaries’ allergy to external factors, resulting in increased capillary permeability and decreased density, and the patient will have the situation of bruising on the legs. It is necessary to take hormones, vitamin C and other medications to achieve significant therapeutic effect.