A purple piece of the body, may be due to trauma caused by collision, and the local subcutaneous capillary rupture caused by blood seepage, and blood stagnation in the subcutaneous localization, it will cause a purple piece. It is recommended to apply hot compresses to the local area, as well as gentle massage, which can effectively promote the decline. If the body often appear purple piece of the situation, it is recommended to go to the hospital for relevant examination, this time may belong to the pathology. For example, it may be due to the capillary wall is relatively fragile, and caused by the slightest touch will be ruptured, which will cause the local phenomenon of purple piece. It may also be due to the body’s platelet count is too low, resulting in abnormal coagulation function. In this case, it can also cause localized blood seepage, resulting in purple patch phenomenon. These two situations are pathological, must be timely and effective treatment, to avoid the phenomenon of hemorrhage in the later stage.