Gluteal Fold (Buttock Crease) – Meaning and Usage in Medical English

👁 What Does “Gluteal Fold” Mean?

The gluteal fold is the horizontal crease at the lower edge of the buttock, where the buttock meets the back of the thigh. It is also called the gluteal sulcus or, in everyday language, the buttock crease.

The word gluteal comes from Greek gloutos, meaning “buttock”. The fold is formed by skin and fat, not by the lower border of the gluteus maximus muscle, which actually runs at a slight angle above it.

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🔍 Clinical Usage

The gluteal fold is a landmark you will see in:

• pressure injury and skin integrity charts
• wound care and dermatology notes
• physiotherapy and orthopedic assessments of the hip
• descriptions of burns and rashes by body region

It also helps define the safe zone for intramuscular injections: the dorsogluteal site is well above the fold, in the upper outer quadrant of the buttock.

Common collocations include:

• below the gluteal fold
• at the level of the gluteal fold
• extending to the gluteal fold
• intertrigo in the gluteal fold

Here’s a natural clinical example:

“Stage 2 pressure injury on the left buttock, 3 cm above the gluteal fold.”
→ Meaning: A shallow pressure sore on the left buttock, a short distance above the crease where the buttock meets the thigh.

🗣 Pronunciation

GLOO-tee-ul FOHLD — the stress is on the first syllable of gluteal.

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💡 OET Tip

In a letter, “the gluteal fold” is clearer than “the bottom of the buttock”. In speaking, patients will say “the crease under my bottom” or “where my bum meets my leg”. Match their words first, then use the medical term when you record it.