An erection (clinically: penile erection or penile tumescence) is a physiological phenomenon in which the penis becomes firm, engorged, and enlarged.

Jan 2, 2026 · Erection, enlargement, hardening, and elevation of the male reproductive organ, the penis. Internally, the penis has three long masses of cylindrical tissue, known as erectile …

Nov 10, 2025 · Erectile dysfunction can happen due to factors like age, stress, and health problems. Exercising and eating a healthy diet can help improve erections. Erections happen …

May 6, 2024 · An erection is a physiological process in which your penis hardens and becomes larger, usually in response to some type of sexual stimulation. While it may seem to happen …

Erection is a hydraulic event, regulated by hormones and nerves, which allow increased blood flow into and storage of blood within the erectile bodies leading to an increase in pressure and …

Jul 25, 2025 · When men become sexually aroused, hormones, muscles, nerves, and blood vessels all work with one another to create an erection. Nerve signals, sent from the brain to …

When the penis is soft, blood flows in and out of the tissue. During sexual excitement, extra blood flows into the tissue. The extra blood makes the tissue swell. The penis then becomes hard …

The initiation of a penile erection is controlled by the nervous system, which sends specific signals to the penile tissues. Erections are categorized into three types based on their primary trigger: …

Apr 5, 2025 · Erection involves nerves, blood flow, hormones, and emotions. Learn types, stages, issues, and proven treatment options.

Jan 15, 2025 · Understanding erections is key to maintaining sexual health. This guide explores the science behind them, including blood flow, hormones, and how lifestyle choices impact …