Buttock pain has a surprisingly long list of possible causes, ranging from something as simple as sitting too long on a hard surface to nerve compression in your lower spine. The location of the pain, whether it stays in one spot or travels down your leg, and what makes it worse are the biggest clues to figuring out what’s going on.
Pain From Sitting Too Long
If your buttocks hurt most when you’ve been sitting for a while and the pain feels like a deep, dull ache right on the bony spots you sit on, the most likely culprit is ischial bursitis. Your “sit bones” (the bony points at the bottom of your pelvis) each have a small fluid-filled sac called a bursa that acts as a cushion. When those sacs get irritated from repeated pressure, they swell and become tender.
Most people with this condition say they can pinpoint the exact sore spot in their buttock or the back of their upper thigh. The pain gets worse with prolonged sitting and can feel tender to the touch. It’s especially common in people who sit on hard surfaces for hours, whether at a desk, on a bike seat, or on bleachers. The primary fix is reducing the pressure: using a cushion with memory foam or gel designed to offload your sit bones, standing up regularly, and avoiding the specific sitting positions that trigger the pain.
Piriformis Syndrome
The piriformis is a small muscle deep in your buttock that runs from your lower spine to the top of your thighbone. When it spasms or tightens, it can squeeze the sciatic nerve that passes right next to (or sometimes through) it. This creates a deep ache in one buttock that can send pain, tingling, or pins-and-needles sensations down the back of your leg.
Piriformis syndrome tends to flare up with hip movements and prolonged sitting. One distinguishing feature: it rarely causes lower back pain. If your pain is concentrated in the buttock itself and gets worse when you cross your legs, sit for a long time, or climb stairs, piriformis syndrome is a strong possibility. Runners, cyclists, and people who sit most of the day are the most common candidates.
Stretching is the frontline treatment. Research using ultrasound imaging to measure muscle tension found that the piriformis stretches most effectively when the hip is deeply flexed (knee pulled toward the chest), angled inward across the body, and rotated outward. In practical terms, that looks like lying on your back, pulling the affected-side knee toward the opposite shoulder, and gently rotating the foot outward. Holding this for 30 seconds a few times per day can gradually reduce the compression on the nerve.
Sciatica From Your Lower Back
Buttock pain is one of the hallmark symptoms of sciatica, which happens when a disc in your lower spine bulges or herniates and presses on a nerve root. A study of over 300 patients with lumbar disc herniations found that 75% reported buttock pain, making it one of the most common symptoms. Interestingly, the buttock pain wasn’t related to back pain or leg pain. It behaved as its own independent symptom, meaning you can have significant buttock pain from a disc problem even without major back pain.
Sciatica-related buttock pain differs from piriformis syndrome in a few ways. You’re more likely to also have lower back pain. The affected leg may feel heavy or weak. And the pain often gets worse when you raise your straightened leg while lying on your back. The pain tends to follow a line from the buttock down through the back of the thigh and sometimes into the calf or foot.
Contained disc herniations, where the outer wall of the disc is still intact but bulging, were actually more likely to cause buttock pain (86%) than ruptured discs (69%). The mechanism involves increased pressure inside the disc pushing on nearby nerve roots, which then refer pain into the gluteal region.
Deep Gluteal Syndrome
When the sciatic nerve gets pinched somewhere in the deep space of the buttock, but not necessarily by the piriformis muscle, it falls under a broader diagnosis called deep gluteal syndrome. The nerve can be compressed by other small rotator muscles in the hip, by fibrous bands of scar tissue, or by blood vessels in the area. The symptoms overlap heavily with piriformis syndrome: deep buttock pain, possible radiating leg pain, and worsening with sitting or certain hip positions. This diagnosis is worth considering if piriformis stretches and typical treatments aren’t helping.
Tailbone Pain
If the pain is centered low and toward the middle rather than in the fleshy part of the buttock, your tailbone (coccyx) could be the source. This type of pain, called coccydynia, typically gets worse when you sit down, lean back, or stand up from a seated position. Common causes include a hard fall onto your backside, repetitive strain from activities like cycling or rowing, and pregnancy or childbirth. During the third trimester, hormones soften the ligaments around the tailbone to prepare for delivery, which can leave it unstable and painful.
A wedge-shaped cushion with a cutout at the back can take pressure off the tailbone while sitting. Most cases resolve over weeks to months with this kind of pressure management and over-the-counter pain relief.
Muscle Strain and Overuse
Sometimes buttock pain is simply a strained or overworked gluteal muscle. This is common after a new workout routine, heavy squats or lunges, long hikes, or running on hills. The pain usually feels like soreness or a pulled muscle, and it’s tender when you press on the fleshy part of the buttock. Unlike nerve-related causes, a muscle strain doesn’t send tingling or numbness down the leg. Rest, ice, and gentle stretching typically resolve it within a week or two.
How to Narrow Down the Cause
Paying attention to the specifics of your pain helps you (and your doctor) figure out what’s happening:
- Pain right on the sit bones that worsens with sitting points toward ischial bursitis.
- Deep buttock pain with tingling down the leg that flares with hip movement suggests piriformis syndrome or deep gluteal syndrome.
- Buttock and leg pain with back pain or leg heaviness leans toward a lumbar disc issue causing sciatica.
- Central, low pain near the tailbone that worsens when sitting down or standing up suggests coccydynia.
- General soreness after exercise without numbness or tingling is likely muscular.
When Buttock Pain Is an Emergency
Rarely, pressure on the bundle of nerves at the base of the spinal cord (a condition called cauda equina syndrome) causes buttock pain alongside alarming neurological symptoms. Go to an emergency room if you develop any combination of buttock or leg pain with difficulty urinating or having a bowel movement, loss of bladder or bowel control, numbness spreading across your inner thighs and groin area (sometimes called “saddle numbness”), or sudden leg weakness that makes walking difficult. This condition requires urgent treatment to prevent permanent nerve damage.
Practical Steps for Relief
For most causes of buttock pain, a few changes make a noticeable difference. If you sit for long stretches, stand up and walk around every 30 to 45 minutes. A pressure-relieving seat cushion made from memory foam or gel, ideally with a cutout or contour that takes weight off your sit bones, can reduce irritation throughout the day. Look for designs with a tapered front edge, which also decreases pressure on the backs of your thighs.
Stretching the piriformis and hip rotators daily helps with several of these conditions at once. The most effective position involves pulling your knee toward the opposite shoulder while lying on your back, then gently rotating the foot outward. Even if your pain turns out to be from a different cause, keeping these deep hip muscles flexible reduces compression on the sciatic nerve and eases tension in the gluteal region. If your pain persists beyond two to three weeks, worsens, or starts traveling down your leg, imaging and a professional assessment can identify whether something structural is going on.