A<unk>  is a device most commonly used during sexual intercourse. It is put on a man's erect penis and physically blocks ejaculated semen from entering the body of a sexual partner.<unk> s are used to prevent pregnancy and transmission of sexually transmitted diseases (STDs—such as gonorrhea, syphilis, and HIV).  Because<unk> s are waterproof, elastic, and durable, they are also used in a variety of secondary applications.  These range from creating waterproof microphones to protecting rifle barrels from clogging.
Most<unk> s are made from latex, but some are made from other materials.  A female<unk>  is also available.  As a method of contraception, male<unk> s have the advantage of being inexpensive, easy to use, having few side-effects, and of offering protection against sexually transmitted diseases. With proper knowledge and application technique—and use at every act of intercourse—users of male<unk> s experience a 2% per-year pregnancy rate.<unk> s have been used for over 500 years.  In the early twentieth century, with the invention of disposible latex<unk> s, they became one of the most popular methods of contraception.  While widely accepted in modern times,<unk> s have generated some controversy. Improper disposal of<unk> s contributes to litter problems, and the Roman Catholic Church generally opposes<unk>  use.
Condom
Intrauterine device
Foley catheter
Coley Fluid
Breast pump
Ventouse
Biricodar
Impella device