Deer blood is used as a traditional Chinese medicine and can be mixed with wine or put into pills or powder. Deer blood is the blood of sika deer or horse deer of the deer family. It is sweet, salty and warm in nature, and can tonify deficiency, nourish blood and stop bleeding. It is mainly used for treating deficiency of essence and blood, lumbago, impotence and spermatorrhea, palpitation (rapid heartbeat, often accompanied by panic), insomnia, impotence of the lungs and vomiting of blood, epistaxis (bleeding from the nose), disintegration (excessive menstruation or more than one drip) and leucorrhoea, carbuncle, swelling and fracture. The adverse effects of Deer’s Blood are not clear at the moment; it is prohibited for use in pregnant women, and should not be used in people with yin deficiency and fire (deficiency of yin and essence in the body and hyperactivity of deficiency fire) and those with real fire. If you need to use the drug, should be in the physician under the guidance of the identification of drugs, not to buy their own use of drugs, so as to avoid delaying the condition of the drug is not the right evidence.