Erection - Wikipedia Penile erection is the result of a complex interaction of psychological, neural, vascular, and endocrine factors, and is often associated with sexual arousal, sexual attraction or libido, although erections can also be spontaneous
erection - 搜索 词典 2 If your libido is over worked, the drugs can only cause a physical erection, but a pleasurable sensation cannot be achieved 如果 你 纵欲 了, 药物 只 会 引起 勃起, 但是 无法 达到 高潮。
Penis: Anatomy, Picture, Erection, and Ejaculation - WebMD An erection occurs when your penis fills with blood, causing it to expand and become firm You might have an erection if you feel sexually aroused, though sometimes they just happen
Stages of an Erection and Managing Common Problems The penis gets erect in stages, going from soft to rigid so that you can have sexual intercourse If you experience problems getting or maintaining an erection, there are things you can do
Penile Erection: Function, Duration How It Works An erection is when a penis hardens and enlarges due to filling up with blood Erections typically occur when a person with a penis is sexually aroused, but it can happen spontaneously