The reasons for the absence of sex drive are psychological problems, hormonal disorders, erectile dysfunction in men, and so on. Commonly used treatments include psychotherapy and medication. 1. Psychological problems: patients with psychological problems resulting in the absence of sex drive can use psychotherapy to understand whether the patient has any psychological shadow resulting in the absence of sex drive, analyze their psychological problems, and enlighten the patient so that he or she can gradually get rid of the psychological shadow. 2. Hormone disorders: women often have no sex drive due to the decline of estrogen, which can be treated with medication such as ethinyl estradiol tablets and estradiol valerate tablets. Men can also suffer from decreased sex drive due to decreased androgen, which can be treated with medications such as nandrolone phenylpropionate and testosterone propionate. 3. Erectile dysfunction in men: Erectile dysfunction in men can cause a decrease in sex drive and can be treated with medications such as tadalafil and sildenafil. Erectile dysfunction can also be treated with surgery. The medication should be used under the guidance of a physician, and those who do not have sex drive should develop good habits in life, ensure sufficient sleep, take a light diet and avoid smoking and drinking.