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Published on: 7/14/2026

Why does sciatica often cause pain in the buttocks?

Sciatica often causes buttock pain when the sciatic nerve—which runs directly through the buttocks—becomes irritated or compressed by the nearby piriformis muscle. This condition, sometimes called piriformis syndrome, can trigger sharp, aching, or radiating pain that may extend down the leg.

Because buttock pain can stem from several causes—including piriformis syndrome, a herniated disc, or spinal issues—identifying the true source matters for choosing the right treatment. A free, instant, online symptom check can help you clarify possible causes in minutes and guide your next steps, whether that means self-care, seeing a doctor, or exploring further tests.

Reviewed for medical accuracy: 07/14/2026

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Explanation

Sciatica often causes pain in the buttocks due to a condition known as piriformis syndrome. The piriformis muscle is located in the buttocks and sits close to the sciatic nerve. When this muscle becomes tight or spasms, it can press against the sciatic nerve, leading to pain that radiates down the leg.

Here are some key points:

  • Piriformis Syndrome: This condition occurs when the piriformis muscle irritates the sciatic nerve. The muscle can become tight from activities like prolonged sitting or excessive exercise.

  • Symptoms: Pain is often felt in the buttocks and can travel down the leg, similar to other types of sciatica.

  • Causes: Overuse, injury, or inflammation of the piriformis muscle can lead to symptoms.

Understanding how the piriformis muscle affects the sciatic nerve helps explain why people with sciatica might feel pain in their buttocks. If you're experiencing buttock pain or symptoms that radiate down your leg, you can take a free symptom checker quiz to help identify potential causes and determine if you should seek medical care. Proper stretching and strengthening exercises can help alleviate the symptoms.

(References)

  • Cass SP. (2015). Piriformis syndrome: a cause of nondiscogenic sciatica. Current sports medicine reports, 25574881.

  • Parziale JR, Hudgins TH, & Fishman LM. (1996). The piriformis syndrome. American journal of orthopedics (Belle Mead, N.J.), 9001677.

  • Papadopoulos EC, & Khan SN. (2004). Piriformis syndrome and low back pain. The Orthopedic clinics of North America, 15062719.

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