A lot of small blood spots on the body may be caused by hemangioma, purpura, urticaria and other reasons. 1. Hemangioma: there are many small blood spots on the body may be hemangioma, hemangioma is a typical symptom of dark red and the surface is flat or slightly elevated nodular thickening of superfluous organisms. Expanded capillaries or blood vessels can be spider-like, strawberry-like or spongy, this small blood spots press down, there will be color loss, can be seen in any part of the body. 2. Anaphylactic purpura: there are many small blood spots on the body may be anaphylactic purpura, the patient’s skin may appear pinpoint-sized red dots, mainly distributed in the distal lower extremities, can be accompanied by abdominal pain, headache, arthralgia, hematuria, proteinuria and other systemic discomforts. 3. Urticaria: Urticaria can also lead to a lot of small blood spots on the patient’s body. Urticaria is usually triggered by contact with pollen, dust mites or eating certain foods. Infection and other factors triggered by the skin allergy symptoms, the beginning of the small red dots or a large area of the wind, usually can be self-canceling. There are a lot of small blood spots on the body, there may be other reasons, it is recommended that patients go to the hospital in time, clear cause under the guidance of the doctor reasonable treatment.