Penile subincision is a form of body modification

Body modification

Body modification is the deliberate altering of the human body for any non-medical reason, such as aesthetics, sexual enhancement, a rite of passage, religious reasons, to display group membership or affiliation, to create body art, shock value, or self expression...

 consisting of a urethrotomy

Urethrotomy

A urethrotomy is an operation which involves incision of the urethra, especially for relief of a stricture. It is most often performed in the outpatient setting, with the patient being discharged from the hospital or surgery center within six hours from the procedure's inception.Urethrotomy is a...

, in which the underside of the penis

Penis

The penis is a biological feature of male animals including both vertebrates and invertebrates...

 is incised and the urethra

Urethra

In anatomy, the urethra is a tube that connects the urinary bladder to the genitals for the removal of fluids out of the body. In males, the urethra travels through the penis, and carries semen as well as urine...

 slit open lengthwise, from the urethral opening (meatus

Urinary meatus

The urinary meatus is an orifice of the urethra. It is the point at which urine and, in males, semen exits the urethra. The meatus features varying degrees of sensitivity to the touch among males and females....

) toward the base. The slit can be of varying lengths.

Subincision is traditionally performed around the world, notably in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, but also in Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, South America

South America

South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

 and the Polynesia

Polynesia

Polynesia is a subregion of Oceania, made up of over 1,000 islands scattered over the central and southern Pacific Ocean. The indigenous people who inhabit the islands of Polynesia are termed Polynesians and they share many similar traits including language, culture and beliefs...

n and Melanesia

Melanesia

Melanesia is a subregion of Oceania extending from the western end of the Pacific Ocean to the Arafura Sea, and eastward to Fiji. The region comprises most of the islands immediately north and northeast of Australia...

n cultures of the Pacific

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, often as a coming of age

Coming of age

Coming of age is a young person's transition from childhood to adulthood. The age at which this transition takes place varies in society, as does the nature of the transition. It can be a simple legal convention or can be part of a ritual, as practiced by many societies...

 ritual. The practice has been taken up in the western world

Western world

The Western world, also known as the West and the Occident , is a term referring to the countries of Western Europe , the countries of the Americas, as well all countries of Northern and Central Europe, Australia and New Zealand...

 in recent years for the purpose of sexual pleasure or aesthetics.

Disadvantages include the risk of surgery, which is often self-performed

Self-surgery

Self-surgery is the act of performing a surgical procedure on oneself. It can be a rare manifestation of a psychological disorder, an attempt to avoid embarrassment or legal action, or an act taken in extreme circumstances out of necessity.- Genital :...

, and increased susceptibility to sexually transmitted infections (STIs).