There are several reasons why women tend to cough after transplantation: 1, it may be due to acute infection, because in the process of transplantation women tend to have some bleeding and injury, which will bring the opportunity of external bacterial or viral infection, when women are infected by bacteria can also cause women to cough. 2, it may be due to the occurrence of acute immune rejection, because the transplanted object belongs to the foreign material The transplanted object is a foreign substance that can trigger the woman’s immune system to undergo a type I hypersensitivity reaction. When a woman’s hypersensitivity reaction occurs, it can lead to pulmonary stasis or bronchial or tracheal spasm, which can stimulate the medulla oblongata’s cough center to cause a woman’s cough. 3, belongs to the normal physiological situation, because after the transplantation of the woman’s sympathetic nerves are more excited, so the nerve reflexes can lead to the woman’s post-transplantation cough.