Buttock muscle pain usually comes from one of a handful of common causes: a strained gluteal muscle, a tight or irritated piriformis muscle pressing on the sciatic nerve, inflamed tendons where your glute muscles attach to the hip, or pain referred from your lower back or sacroiliac joint. The good news is that most of these improve with targeted stretching, activity changes, and time. Understanding what’s behind your pain helps you figure out what to do about it.
Gluteal Muscle Strain
The simplest explanation is often the right one. Your buttocks contain three muscles (the gluteus maximus, medius, and minimus), and any of them can be strained from overuse, sudden movements, or unaccustomed exercise. Think heavy squats, hill running, or even a long day of yard work. A strain means the muscle fibers have been stretched or torn to some degree.
Recovery depends on severity. A mild (Grade 1) strain, where the muscle is overstretched but not significantly torn, typically heals within one to three weeks with rest. A moderate (Grade 2) tear involves more fiber damage and can take four to eight weeks with progressive rehabilitation. A severe (Grade 3) rupture, which is a complete or near-complete tear, may need three to six months to heal and sometimes requires surgery. With a mild strain, you’ll feel soreness and tightness. With a moderate or severe tear, you’ll likely have sharp pain with certain movements, bruising, or noticeable weakness when climbing stairs or standing on one leg.
Piriformis Syndrome and Deep Gluteal Syndrome
The piriformis is a small, deep muscle that runs diagonally across your buttock, right over (or in some people, around) the sciatic nerve. When this muscle tightens, spasms, or swells, it can compress the sciatic nerve and produce a deep, aching pain in the buttock that may also cause tingling or numbness in the upper thigh. Piriformis syndrome is actually a subset of a broader category called deep gluteal syndrome, where any of the deep structures in your buttock can trap the sciatic nerve.
About 14% of people have an anatomical variation where part or all of the sciatic nerve passes directly through the piriformis muscle rather than beneath it. In the most common variation, affecting roughly 7% of people, one branch of the nerve pierces the muscle while the other passes below. These variations may make certain individuals more prone to nerve compression with even mild piriformis tightness.
The key feature of piriformis syndrome is that the pain starts in the buttock itself, not the lower back. It’s often worse with sitting (especially on hard surfaces), crossing your legs, or climbing stairs. Pain rarely extends below the knee, which helps distinguish it from true sciatica.
Sciatica From the Spine
True sciatica originates in the lower back, where a herniated disc, bone spur, or narrowing of the spinal canal compresses nerve roots before they join to form the sciatic nerve. Even though the problem is in your spine, you often feel it most intensely in the buttock and down the back of the leg. The hallmark difference: sciatica frequently radiates all the way down the calf and into the foot, following the full path of the nerve. The sensation tends to be sharp, shooting, or burning rather than a dull ache, and it’s commonly accompanied by numbness, tingling, or weakness in the leg.
If your buttock pain came on after heavy lifting, prolonged sitting, or a sudden twist, and it shoots down past your knee, a spinal issue is more likely than a local muscle problem.
Gluteal Tendinopathy
Your gluteal muscles connect to bone through tendons, and these tendons can become irritated and painful, particularly where they attach at the bony ridge on the outside of your upper thighbone. This is gluteal tendinopathy, and it’s especially common in women over 40, runners, and people who have recently increased their activity level.
The pain is typically felt on the outer hip and upper buttock, and it’s often worst when lying on the affected side, climbing stairs, or standing on one leg for any length of time. It develops from either overuse (too much force on the tendons during repetitive activity) or underuse (tendons that have weakened from inactivity and then get suddenly loaded). One practical tip from clinicians: avoiding low chairs can reduce the compression on these tendons and help with symptoms.
Sacroiliac Joint Pain
The sacroiliac (SI) joints sit where your lower spine meets your pelvis, one on each side. When these joints become inflamed, a condition called sacroiliitis, the pain is most commonly felt in the buttocks and lower back. It can also travel down one or both legs, into the groin, and occasionally to the feet. SI joint pain often worsens with prolonged standing, stair climbing, or taking long strides. It’s a frequent cause of buttock pain during pregnancy, after falls, or in people with inflammatory conditions like ankylosing spondylitis.
Stretches That Help
Static stretching, where you hold a position for at least 30 seconds, can meaningfully ease hip and buttock pain. Aim for three to five times per week, ideally after a brief warm-up or your regular exercise routine. Three stretches recommended by Harvard Health target the key muscles involved:
Single knee pull: Lie on your back with legs extended. Bend one knee, grasp the back of your thigh, and pull the knee toward your chest until you feel a stretch in your lower back and buttock. At the same time, press your opposite leg flat against the floor to stretch the front of that hip. Hold for 30 seconds, then switch sides.
Floor pretzel (figure-four stretch): Lie on your back with one knee bent and foot flat on the floor. Rest the opposite ankle on your thigh just above the knee. Grasp behind the bent thigh with both hands and slowly lift that foot off the floor until you feel a deep stretch in the crossed leg’s hip and buttock. This directly targets the piriformis. Hold 30 seconds per side.
Kneeling hip flexor stretch: Kneel with one foot forward, knee bent at 90 degrees. Lean forward and press the back hip toward the floor. This stretches the front of the hip on the kneeling side, which helps rebalance the muscles that pull on your pelvis and indirectly affect the glutes. Hold 30 seconds per side.
For gluteal tendinopathy or moderate strains, strengthening matters as much as stretching. Exercises like side-lying leg lifts, single-leg bridges, and clamshells progressively load the gluteal muscles and tendons, building tolerance over weeks.
Symptoms That Need Prompt Attention
Most buttock pain is manageable at home, but certain symptoms point to something more serious. Numbness in the groin or inner thighs (sometimes called saddle numbness), loss of bladder or bowel control, or progressive weakness in both legs can signal cauda equina syndrome, where nerves at the base of the spine are severely compressed. This is a medical emergency.
Other warning signs include fever alongside deep buttock pain (which could indicate an infection in the muscle), unexplained weight loss or loss of appetite paired with persistent pain, and sudden severe pain after a fall or accident. Sharp pain that radiates from the lower back all the way to the foot, especially with numbness or leg weakness, also warrants evaluation sooner rather than later.