The bruising on the body indicates that there is bleeding from ruptured subcutaneous capillaries, which can be caused by a variety of reasons, including: First, after trauma, due to the external force on the subcutaneous capillaries, resulting in bleeding from ruptured capillaries, there will be bruising on the body. Second, spontaneous bruising, the cause of a variety of factors, commonly caused by capillary factors, such as vitamin C deficiency patients due to increased capillary permeability, reduced density, after a minor collision will appear on the body bruising symptoms, sometimes even without trauma, spontaneous bruising. Patients with coagulation disorders, such as hemophiliacs, may have subcutaneous bruising due to the lack of coagulation factors and coagulation disorders, which may cause blood to permeate from inside to outside the blood vessels. This subcutaneous bruising is usually deeper in location, and sometimes there is even a hematoma bruise within the muscle.