The penis is the male organ used for urination and sexual intercourse. It is located above the scrotum and is made of spongy tissue and blood vessels. The shaft of the penis surrounds the urethra and is connected to the pubic bone. The foreskin covers the head (glans) of the penis, which is removed if the boy is circumcised. During puberty, the penis lengthens, and the ability to ejaculate begins at around age 12 to 14. The main functions of the penis include:

• Urination: The penis contains the urethra, which allows passage of urine from the bladder to the urethral opening, enabling a person to expel urine from the body.

• Sexual Intercourse: The penis fills with blood during arousal, causing an erection, which enables a person to penetrate a partner and have sex. Following sexual activity or manual stimulation, a person can then ejaculate.

The penis also plays an important role in reproduction, as it is the male organ used for sexual intercourse. The penis contains the penile urethra that is a tube that transports urine and semen out the tip of the penis. The penis is a complex external organ that contains soft, spongy tissue as well as muscles, fibrous tissue, veins, arteries, and the urethra. Knowing the anatomy and function of the penis is important for good health, and noticing any changes in the appearance, sensation, or performance of the penis can indicate an underlying issue that may require medical attention.