Piriformis Syndrome: Symptoms, Causes and Self-Care

Piriformis syndrome is deep buttock pain that happens when the small piriformis muscle irritates the sciatic nerve running beside it. It often aches with sitting and can send pain down the back of the thigh. Most cases settle in a few weeks to a few months with gentle movement, less sitting and glute strength work.

I’m a certified personal trainer and corrective exercise specialist, and a deep, one-sided ache in the backside is something women I coach describe all the time. Sitting a lot, a sudden jump in activity and weak glutes are the usual pieces of the puzzle.

This guide covers how piriformis syndrome usually feels, what sets it off, how long it tends to take to calm down and what you can do at home in the meantime, plus the signs that mean your pain needs a doctor.

What Piriformis Syndrome Is

Your piriformis is a small, pear-shaped muscle deep in the buttock. It runs from the base of your spine (the sacrum) to the top of your thigh bone and helps turn your leg outward and steady your pelvis.

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The sciatic nerve, the large nerve that runs down the back of your leg, passes right beside it. In some people it even runs through the muscle. When the piriformis gets tight, swollen or overworked, it can press on or irritate that nerve.

Doctors sometimes call it deep gluteal syndrome, because other small muscles in the same area can cause the same pattern. There is no single perfect test for it, so it is usually diagnosed by ruling out other causes such as a problem in the low back.

Piriformis Syndrome Symptoms

Symptoms vary, but these are the ones most people describe:

• A deep, dull ache in one buttock, often right in the middle of the cheek
• Pain that gets worse after sitting for 20 to 30 minutes or more
• Pain or tingling that travels down the back of the thigh, usually stopping above the knee
• Tenderness when you press deep into the buttock
• Discomfort climbing stairs, getting out of the car or crossing your legs
• Relief when you stand up and walk around

Low back pain is usually mild or absent. If your back is the main source of pain, or your symptoms run below the knee into the foot, the problem may start in your spine instead. My guide on what causes sciatica pain explains the difference.

Piriformis Syndrome Symptoms in Females

Piriformis syndrome is more often reported in women than in men. Part of the reason may be the wider shape of the female pelvis, which changes the angle of the muscle. Long hours sitting at a desk, in the car or on the couch add to it.

The symptoms themselves are the same for women and men. But many women I coach say the ache is worse on soft couches, low car seats and long drives, all of which put direct pressure on the buttock.

Common Piriformis Syndrome Causes

Piriformis syndrome rarely has one single cause. It is usually a mix of these:

1. Long sitting. Hours of pressure on the buttock, especially on hard seats or with a wallet in a back pocket.
2. Weak glutes. When the big glute muscles don’t do their share, small rotators like the piriformis work overtime.
3. A sudden jump in activity. More walking, running, hills or stairs than your body is used to.
4. Repetitive motion. Long drives with your foot on the pedal or lots of lunging and twisting.
5. A fall or direct blow. Landing on your backside can bruise and irritate the muscle.
6. Movement habits. Always crossing the same leg or standing with your weight on one hip.

What Makes IT Get Worse

If your piriformis syndrome is getting worse instead of better, look at these common culprits first:

• Sitting for long stretches without a break
• Stretching too hard, too often or into tingling
• Deep tissue work or rolling right over the nerve
• Jumping back into running, hills or heavy leg days too soon
• Ignoring the glute strength side of the plan

The fix is usually doing less of what irritates the nerve and more of what builds strength, not pushing harder.

Piriformis Syndrome Self-Care at Home

Self-care works best as a mix of calming the area down and slowly building it back up.

Break Up Your Sitting

Stand up and walk for a minute or two every 30 to 45 minutes. Sit on a firmer, flatter seat rather than a deep couch, and take your wallet or phone out of your back pocket. If you sit a lot for work, my desk health guide has more ideas.

Keep Moving Gently

Short, easy walks on flat ground usually help more than rest. Movement keeps blood flowing to the area and calms the nerve. If you want more ideas, look for gentle options that don’t press on the buttock, such as walking in water or a stationary bike with a soft seat.

Use Gentle Stretches

Light stretches like the lying figure four can ease the muscle. Keep the pull mild, hold for about 30 seconds and stop if you feel burning or tingling. My piriformis stretches guide shows seven options from easiest to hardest.

Build Glute Strength

Glute bridges, clamshells and sit to stand from a chair, 2 or 3 sets of 10, three days a week, are a good start. Strong glutes take pressure off the piriformis. My hip strengthening exercises walk you through a full beginner plan.

Go Easy on Deep Pressure

Pressing a ball hard into the sore spot is tempting, but digging right over the nerve can make it angrier. If you like rolling, use a softer foam roller on the big glute muscles and outer thigh, keep the pressure moderate and move slowly.

A minute or two per side is plenty. My guide to foam roller exercises for hips and glutes shows how to do it gently. Skip any spot that causes tingling.

Try Heat or Ice

Many people find a warm shower or a heat pack eases the deep ache. Others prefer a cold pack for 10 to 15 minutes after activity. Use whichever feels better, and keep a thin towel between your skin and the pack.

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Piriformis Syndrome Sleeping Position

Night time can be tough when the sore side is pressed into the mattress. These positions often help:

• On your back: Put a pillow under your knees to keep your hips relaxed.
• On the good side: Lie on the side that does not hurt with a pillow between your knees and ankles so your top leg stays level.
• Avoid the starfish: Sleeping on your stomach with one knee hiked up to the side can twist the hip and irritate the muscle.

If pain wakes you at night no matter how you lie, that is a different situation. See the red flags below.

How Long Does Piriformis Syndrome Take to Heal

There is no single timeline, but here is a rough guide based on how long you have had it and how you respond to care.

Progress is rarely a straight line. Good days and bad days are normal. Judge your progress week to week, not day to day.

A useful sign you are on track: you can sit a little longer before the ache starts, or it fades faster once you stand up. Those small wins usually come before the pain disappears completely.

How IT Differs from Other Buttock Pain

Piriformis syndrome shares symptoms with sciatica from the low back, SI joint pain and plain glute muscle strain. That overlap is why a professional assessment matters if your pain lingers. Two conditions can also show up at the same time, which is another reason not to guess for months on your own.

A rough clue: pain that is mainly deep in the buttock and worse with sitting leans toward piriformis. Pain that starts in the back or runs into the foot leans toward the spine. For a wider look at backside aches, see my guide to glute pain.

When to See a Doctor or Physical Therapist

Piriformis syndrome is uncomfortable but rarely serious. Still, some signs point to something more. See a doctor or physical therapist if you notice:

• Numbness or tingling that spreads or doesn’t go away
• Weakness in your leg or foot, or a foot that drags
• Pain that started after a fall or an accident
• Fever along with hip or buttock pain, or a hot, swollen joint
• Pain that wakes you at night no matter how you lie
• Loss of bladder or bowel control, or numbness around the groin, which needs emergency care
• No improvement after 2 to 3 weeks of gentle self-care

A physical therapist can check whether the nerve irritation is coming from your piriformis, your low back or your SI joint. Talk to your doctor about treatment options if self-care isn’t enough.

Your This-Week Plan

1. Every day: Stand up and move every 30 to 45 minutes and take your wallet out of your back pocket.
2. Days 1 to 3: Take two short, flat walks and do the lying figure four stretch gently, 2 rounds per side.
3. Days 4 to 5: Add glute bridges, 2 sets of 10, after your walk.
4. Days 6 to 7: Add clamshells and sit to stand, and try the pillow-between-the-knees sleeping position.

Quick Questions

This guide is part of my hip and lower body pain guide, where you’ll find help for piriformis stretches, glute pain, outer hip pain and SI joint pain, plus honest advice on when to see a doctor.

The Bottom Line

Piriformis syndrome is a deep buttock ache that comes from a cranky muscle irritating the nerve beside it. Less sitting, gentle stretches, easy walks and glute strength work help most people feel better within a few weeks.

Be patient and judge your progress week to week. And if you have numbness, leg weakness or any change in bladder or bowel control, get checked before you keep going.

This article is for general education and isn’t medical advice. Talk to your doctor or a physical therapist before starting if you have ongoing buttock, hip, back or leg pain, a recent injury or surgery. Get medical help promptly for numbness or tingling, leg weakness, pain after a fall, fever with joint pain, pain that wakes you at night, or any loss of bladder or bowel control.