It is a disposable, tube-shaped piece of thin latex rubber or animal membrane. It is rolled over the erect penis just before intercourse. There is usually a place at the tip of the condom to hold ejaculated semen. The condom provides a barrier that stops sperm from entering a woman's uterus. Latex condoms also provide a barrier against the transmission of sexually transmitted disease.
Male condoms are available in a wide variety of styles, colors, and textures.
Most condoms are similar in size and fit most men. Some condoms are coated with a special lubricant that kills sperm. Use a new condom every time you have intercourse. Either partner can place the condom over the tip of the erect penis, leaving a space at the top of the condom. Roll it down to cover the entire penis.