Genital modifications are forms of body modifications applied to the human sexual organs, such as piercings, circumcision, or labiaplasty.
Body modification
Many types of genital modification are performed at the behest of the individual, for personal, sexual, aesthetic or cultural reasons.
Penile subincision, or splitting of the underside of the penis, is widespread in the traditional cultures of Indigenous Australians. This procedure has taken root in Western body modification culture, the modern primitives. Meatotomy is a form that involves splitting of the glans penis alone, while bisection is a more extreme form that splits the penis entirely in half.
Genital piercings and genital tattooing may be performed for aesthetic reasons, but piercings can have the benefit of increasing sexual pleasure for the pierced individual or their sex partners.
Similarly, pearling involves surgical insertion of small, inert spheres under the skin along the shaft of the penis for the purpose of providing sexual stimulation to the walls of the vagina. Similar to tattooing, genital scarification is primarily done for aesthetic reasons by adding cosmetic scars to the skin. The genital decoration by scars is an ancient tradition in many cultures, both for men and women. The Hanabira-style (Japanese for petal) is a special form of scarification originating in Japan; it involves the decoration of the mons pubis.
Clitoris enlargement may be achieved temporarily through the use of a clitoral pump, or it may be achieved permanently through the application or injection of testosterone. Penis enlargement is a term for various techniques used to attempt to increase the size of the penis, though the safety and efficacy of these techniques are debated.
Sex assignment and Intersex surgery
Intersex children and children with ambiguous genitalia may be subjected to surgeries to "normalize" the appearance of their genitalia.
These surgeries are usually performed for cosmetic benefit rather than for therapeutic reasons.