Disease factors: There are many diseases that will lead to the disappearance of Chen Bo, such as impotence, hypertension, coronary heart disease, leukemia, tuberculosis, malignant tumor, diabetes, lumbar disc herniation, spinal cord injury and so on. Sleep: Sufficient sleep time and quality of sleep will affect the secretion of hormones to varying degrees, thus affecting Chen Bo to varying degrees.

Mental factors: severe mental trauma, excessive grief, depression, etc. Chen Bo can be significantly reduced. During the day, most of these patients start slowly or cannot start. Fatigue: Excessive fatigue and exhaustion of energy will also affect Chen Bo.

Bad living habits: such as excessive smoking, drinking, irregular work and rest time, too little sleep time at night, etc. , can also affect Chen Bo. Other factors, such as endocrine factors, pituitary dysfunction and environmental pollution. , can also reduce or even disappear Chen Bo. Chen Bo's judgment on the degree of sexual dysfunction.