Groin attack

A groin attack is a deliberate attempt to cause pain to the groin area of one's opponent. Often used in self-defense, the technique can be quickly debilitating, due to the large number of sensitive nerve endings in the penis and testicles of males, as well as the highly innervated vulva and ovaries of females. A sufficiently powerful blow may fracture the pubic bone of the victim, resulting in physical disability. This technique has been popularized as a comedic device in various forms of media.

Low blow

An attack to the groin is considered to be a "low blow" not only in the literal sense, but is the origin of the metaphor. In a playful attack, or attack in the framework of a sport, a low blow is seen as unfair or improper and is often considered dishonourable. Strikes to the groin are almost universally forbidden in martial arts competitions, including boxing, kickboxing, and mixed martial arts competitions where full-contact strikes are normal and permitted, eventually resulting in penalties and disqualifications. Testicle attacks were, however, allowed until the 1980s in international Thai boxing (Muay Thai) and are still permitted in Thailand itself (though the boxers wear cups to lessen the impact). Many martial arts organizations require competitors to wear protective cups against accidental blows, as do many other sports. Direct strikes to the groin are generally considered illegal in professional wrestling as well, and unofficial rings may consider it shameful, however, in certain "hardcore" matches the rules are relaxed and such attacks are allowed by mutual consent.