Male coital weakness is mostly considered to be erectile dysfunction, can be seen in mental psychological factors, blood vessels, neurological factors and hyperthyroidism, diabetes and other diseases. 1. Psychological factors: If the recent psychological pressure due to work and other reasons and stay up late, drinking and other causes of the body’s mental state is poor, it may lead to a temporary decline in sexual function, pay attention to rest. 2. If the narrowing of the vascular lumen of the cavernous body of the penis due to hyperlipidemia, insufficient blood congestion, and nerve conduction disorders can lead to erectile dysfunction, it can be clearly diagnosed by Doppler ultrasound examination. 3. In addition, hyperthyroidism, diabetes and other systemic diseases, as well as prostatitis, prostate hyperplasia, etc., may lead to the phenomenon of weakness in the middle of sexual life. Therefore, it is recommended to go to the hospital in time for further examination under the guidance of the doctor to make a clear diagnosis.