Erection aid delay is a different need, erection aid is the existence of impotence, need to use tadalafil, sildenafil, etc.; delay is the existence of premature ejaculation, need to use dapoxetine hydrochloride, paroxetine hydrochloride and so on. 1. Impotence: impotence refers to the inability of men to sustain sufficient penile erection, cardiovascular, neurological, traumatic, surgical, psychological factors may cause impotence, can be treated through psychotherapy and take tadalafil tablets, vardenafil tablets, sildenafil tablets and other medications 2. Premature ejaculation: Premature ejaculation is a male sexual dysfunction disease, thyroid disease, prostatitis, erectile dysfunction, genetic variation, psychological factors may cause premature ejaculation, in the clinic will be manifested in the short time of sexual intercourse, unable to control the ejaculation time, mainly through psychological treatment and taking paroxetine hydrochloride tablets, sertraline hydrochloride tablets, dapoxetine hydrochloride tablets and other drugs. It is recommended to go to the hospital for examination, to clarify the cause of the disease and timely symptomatic treatment.