Before the strong libido but later erection problems clinically known as erectile dysfunction, erectile dysfunction caused by a number of reasons, such as psychosomatic factors, vascular factors, neurological factors, adverse reactions to drugs and so on. 1. Psychosomatic factors: Erectile dysfunction can be caused by uncoordinated relationship between husband and wife, bad sexual experience, or excessive pressure in daily work and life. 2. Vascular factors: normal blood vessel function is the basis of penile erection, if the blood vessel function is abnormal, it can cause erectile dysfunction, common causes are atherosclerosis, diabetes and so on. 3. Neurological factors: damage to the central nervous system, spinal cord damage, etc., can also cause erectile dysfunction. 4. Adverse drug reactions: if you take anti-hypertensive drugs, antidepressants and other drugs for medical reasons, they can also affect erectile function. It is recommended that patients go to the hospital in time, after clarifying the cause of the disease, receive treatment as soon as possible, so as not to affect daily life.