The most common cause of bruises on the body is the rupture of capillaries under the skin and bleeding. The main reasons for the above symptoms are as follows: 1) It may be congenital coagulation problems, such as thrombocytopenia or congenital lack of coagulation factors, 2) It may be liver diseases, which is commonly caused by cirrhosis, resulting in the enlargement of the spleen and causing the body’s coagulation function to deteriorate, 3) It may be caused by trauma, which may cause bleeding of subcutaneous blood capillaries after accidental local injury, and thus localized blue lumps may also appear. 4) It may be caused by local venous small angiomas that rupture on their own, which may also appear localized green lumps. Bleeding, which will also appear localized blue lumps. 4, may be the local venous small hemangioma ruptured by itself will also appear blue lumps of the situation.