There are red blood spots on the chest, consider the following diseases: 1, hemangioma, due to ageing and other factors, small papules, bright red color, in clinical treatment can choose carbon dioxide laser cauterization or pulse laser for treatment, but also can choose liquid nitrogen freezing or ionization cauterization for treatment; 2, pressure purpura, due to the chest after external force, small arteries, small veins, small veins, red blood cells extravasation caused by the rupture of the disease, without special intervention can be achieved, The rupture of the capillaries and the extravasation of red blood cells are caused by the rupture of the capillaries, which can be self-healing without special intervention; 3, allergic purpura, which is caused by the inflammatory reaction around the blood vessels due to the infection of bacteria, viruses and other microorganisms, can be treated with oral compound rutin tablets.