After drawing blood arm sleepy, mainly due to blood collection when the blood collection needle skin and subcutaneous tissue caused by trauma, and blood collection is likely to press the pressure is not timely, resulting in blood from the blood vessels seepage caused by subcutaneous hematoma, this situation can be caused by subcutaneous inflammatory reaction, inflammatory factors will be stimulated by the exudation of the peripheral blood vessels and nerves, resulting in the symptom of arm sleepy. In this case, hot compresses or physical therapy can be applied to improve local blood circulation and reduce the inflammatory response. If the symptoms are severe, non-steroidal anti-inflammatory drugs, such as ibuprofen or diclofenac sodium, can be used orally to control the local symptoms and reduce the local inflammatory reaction. If the localized bruising is severe, topical application of Xitra can also be used, which can be equally therapeutic.