Weakness in the middle of sexual intercourse may be caused by the presence of impotence or physical or kidney deficiency, or it may be caused by psychological disorders. Although there is an erection and a certain degree of hardness, it cannot maintain sexual intercourse for a sufficient amount of time, thus preventing intercourse or not being able to complete it. In this case, you need to go to the hospital for penile blood flow and penile erectile hardness examination, as well as to develop good lifestyle habits, actively exercise, keep a stable state of mind, and can take drugs such as Liu Wei Di Huang Wan for regulation.