Impotence: Definition, Symptoms, Causes, Checkups and Treatments

Definition of Impotence
During intercourse, failure rate of erection is more than 25% is called impotence. Patient who never had an erection is called primary impotence, the prognosis is poor; Patient who has had erections before and fail to erect later is called secondary impotence; some patients only have impotence occurs in specific occasions and specific objects, but they can successfully erect when they encounter other occasions or objects, its called situational impotence. 
Symptoms  of  Impotence
Complete impotence refers to no erection under any kind of circumstances; partial impotence refers to sometimes can erect, sometimes can’t, or semisoft erection. 

Causes of Impotence
In order to carry out targeted treatment, the first thing is to find out the cause of impotence. The correct classification of impotence is helpful to the diagnosis and treatment of impotence. Generally divided into organic impotence and psychological impotence. Organic impotence includes: endocrine, vascular, drug, diabetes, neuropathic, postoperation and genital deformity, etc. 
Checkups of Impotence
Organic impotence should be excluded before being diagnosed as functional. The order of examination should be asking detailed medical history, especially medication history, endocrine examination, cavernography of the penis, erection test and perfusion test. 
Treatments of Impotence
Impotence caused by the effects of drugs should be stopped or changed to other drugs. Vascular impotence can be treated with vascular surgery.  For psychological impotence, psychotherapy or behavioral therapy should be adopted, and to a few organic impotence patients who can’t solve its pathogeny, they can consider to make penis prosthesis implantation surgery. 

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