Small red spots of subcutaneous bleeding are mostly considered to be caused by pressure purpura, cherry-like hemangioma, and allergic purpura. Pressure purpura generally does not need special treatment; cherry angioma can be improved by general treatment or surgery; allergic purpura is mostly treated with drugs. 1. Stress Purpura: Bleeding spots the size of a pinprick or granule may be caused by mechanical external force or by crying or vomiting with force. This is a normal phenomenon and does not require special treatment. 2. Cherry-like hemangioma: multiple bright red small hemangiomas, most of them occur in the trunk and upper limbs of the human body, and most of them are related to aging of the skin and vascular hyperplasia. Patients with mild symptoms can be treated by protecting the wound, avoiding contact with dirt and preventing infection; those with severe symptoms, which have already affected aesthetics, can be treated by laser therapy, freezing or traditional excision surgery. 3. Anaphylactic purpura: Most of them are related to food, drugs, infection and other factors. Patients will not only show small red spots of bleeding under the skin, but also accompanied by joint pain and kidney changes. It is recommended that patients be treated with dexamethasone and prednisone under the guidance of a doctor. Such drugs have strong anti-inflammatory and immune-regulating functions, so they can effectively improve the symptoms of allergic purpura. When the patient subcutaneous bleeding, should go to the local hospital in a timely manner, clear cause under the guidance of the doctor standardized treatment, the use of drugs need to follow the doctor’s instructions, avoid self-medication.