intergluteal

Intergluteal is an anatomical term describing anything located between the buttocks. In humans, it most commonly refers to the intergluteal region, particularly the intergluteal cleft (also known as the natal cleft), the vertical groove that runs along the midline between the left and right gluteal muscles from the sacrum to the perineum.

Anatomy: The region is bounded laterally by the gluteus maximus muscles and medially by the skin that forms the natal cleft. The skin and subcutaneous tissue create a median groove that varies in depth and width among individuals, influenced by body habitus and muscular development.

Clinical relevance: The intergluteal region is prone to moisture-related skin conditions, such as dermatitis or intertrigo, especially in obesity or warm environments. It can be affected by inflammatory or infectious processes including hidradenitis suppurativa, folliculitis, abscesses, or fungal infections. Proper hygiene and ventilation are commonly recommended to reduce irritation.

Terminology: The term intergluteal is used as an adjective; related terms include natal cleft and intergluteal fold. In some medical texts, the Latin term sulcus interglutealis is used to denote the groove between the buttocks.

Medical procedures: For injections or nerve blocks, clinicians usually avoid the midline intergluteal region due to underlying structures and risk of injury; intramuscular injections are typically performed in the upper outer quadrant of the buttock to minimize risk to the sciatic nerve.