What should you know about piriformis muscle strain?

The piriformis sits deep in the buttock and helps rotate and stabilise the hip. A strain may follow a sudden change of direction, forceful exercise, prolonged loading, or an awkward movement. Pain can be local to the buttock and may worsen with sitting, stairs, running, or turning the hip. Irritation near the sciatic nerve can add tingling or pain down the leg, which means other causes should also be considered.

For the early phase, reduce activities that clearly increase pain and keep gentle, comfortable movement. Cold or warmth may feel helpful for some people; protect the skin and stop if symptoms worsen. As pain settles, guided hip and trunk strengthening can restore load tolerance. A physiotherapist can distinguish a strain from [Muscle Strain](/conditions/muscle-strain/) and related complaints such as [Thigh Pain](/symptoms/thigh-pain/) or [Lower Back Pain](/symptoms/lower-back-pain/).

Arrange care when pain is severe, follows a significant injury, keeps returning, or prevents normal walking or sitting. Seek urgent help for new leg weakness, spreading numbness, loss of bladder or bowel control, numbness around the groin, fever, or a swollen painful calf. Do not assume every deep buttock pain is a muscle strain.

Ask: Which movement is irritating the muscle? Could the back or hip be contributing? What exercises are suitable now? How should I increase walking or sport? How should I respond if symptoms travel below the buttock?