The causes of sexual apathy are more complex, and may be related to psychological factors, indiscriminate use of drugs, excessive fatigue, physical illness and other reasons. 1. Psychological factors: there are various psychological factors that cause frigidity, such as marital disharmony leading to mutual antipathy and hatred between husband and wife, which may cause frigidity. For example, if you have been traumatized by sex in the past, or if you have been unable to feel pleasure from sex for a long time, you may suffer from frigidity. 2. Indiscriminate use of drugs: when people take sertraline, risperidone, olanzapine and other antidepressants or antipsychotics for a long time, it may also affect the libido, resulting in more frigid to sex. 3. Excessive fatigue: for example, some people engaged in heavy work, the body is in a state of fatigue for a long time, will also affect the libido, thus appear to the phenomenon of sexual apathy. 4. physical disease: when people suffer from endocrine diseases, vascular lesions, reproductive organ lesions, neuropsychiatric disorders, may also affect the libido, the phenomenon of more frigid sex. Prolonged apathy towards sex may reduce the quality of life, so we should actively cooperate with professional doctors for treatment.