Severe hip pain usually comes from one of a handful of common problems: arthritis wearing down the joint, inflamed soft tissues around the hip, a structural issue inside the joint itself, or pain radiating from your lower back. Figuring out which one depends on where exactly it hurts, what makes it worse, and how it started.
The hip is a deep ball-and-socket joint surrounded by tendons, fluid-filled sacs, and layers of muscle. Pain can come from inside the joint or from any of those surrounding structures, and the two can feel surprisingly similar. Location is your best clue.
Where You Feel It Matters
Hip pain doesn’t always mean the same thing depending on where you point. Pain deep in the groin or front of the hip usually signals a problem inside the joint itself, like arthritis or a labral tear. Pain on the outer side of the hip, right over the bony bump you can feel when you press, typically points to bursitis or tendon irritation. Pain in the buttock or running down the back of your leg often originates in your lower spine, not your hip at all.
This distinction matters because people frequently describe all of these as “hip pain,” and the causes and treatments are completely different. If you press on the outside of your hip and it reproduces your exact pain, that’s a soft tissue problem. If your pain is worst when you rotate your leg inward (like pigeon-toeing your foot), that’s more likely the joint. If it shoots or tingles below the knee, think spine.
Osteoarthritis: The Most Common Cause
If you’re over 50 and your hip has been gradually getting stiffer and more painful over months or years, osteoarthritis is the most likely explanation. The cartilage lining the joint wears down over time, leaving bone surfaces with less cushion between them. This creates a deep, achy pain in the groin or front of the thigh that’s worse with activity and better with rest.
Morning stiffness is a hallmark, but with osteoarthritis it typically loosens up within about an hour. You may also notice you can’t rotate your hip the way you used to, or that getting in and out of a car has become difficult. The pain tends to build slowly rather than appear overnight, though flare-ups can make a bad week feel dramatically worse than the week before. Weight-bearing activities like walking and climbing stairs usually aggravate it the most.
Bursitis and Tendon Problems
The outer hip has a bursa, a small fluid-filled cushion, that sits over the bony prominence on the side of your thigh bone. When this bursa gets irritated, the result is a sharp, burning pain right on the outside of the hip that can radiate down your outer thigh. Pressing directly on the spot reproduces the pain almost perfectly.
This is called trochanteric bursitis (or greater trochanteric pain syndrome), and it’s extremely common, especially in women and runners. Lying on the affected side at night is often the worst part. The pain can also flare when you climb stairs, cross your legs, or get up from a chair. Tendons that attach around the same area can become inflamed for the same reasons, making it hard to distinguish bursitis from tendinopathy without imaging. Fortunately, the initial treatment for both is the same: reducing irritation and gradually strengthening the muscles around the hip.
Labral Tears and Hip Impingement
Inside the hip socket, a ring of cartilage called the labrum acts like a gasket, helping seal and stabilize the joint. This cartilage can tear from a single injury, like a car accident or a hard pivot in sports, or from years of repetitive motion in activities like running, golf, or ballet.
The signature symptoms of a labral tear are mechanical: clicking, catching, or a locking sensation in the hip, along with deep groin pain. You might feel like your hip “gives way” during certain movements. Stiffness and limited range of motion are common too.
Labral tears often happen alongside hip impingement, a condition where extra bone growth on either the ball or socket of the hip creates an abnormal fit. There are two types. In one, extra bone forms on the top of the thigh bone. In the other, the socket rim extends too far over the ball. Many people have both. The extra bone pinches the labrum during movement, gradually damaging it. Athletes in sports requiring deep hip flexion or rotation, like hockey, soccer, and dance, are at higher risk.
When the Pain Is Coming From Your Back
One of the trickiest things about hip pain is that it sometimes isn’t a hip problem at all. Your lower spine and hip share nerve pathways, so conditions like lumbar spinal stenosis (narrowing of the spinal canal) or a herniated disc can send pain into the hip, buttock, and leg. Sciatica, which involves compression of the sciatic nerve, commonly presents as deep buttock pain that travels down the back of the thigh.
This overlap is so common that doctors have a name for it: hip-spine syndrome, where problems in both the hip joint and the lumbar spine coexist and create overlapping symptoms. Numbness, tingling, or weakness in the leg are clues that the spine is involved. If your “hip pain” gets worse when you sit for a long time or when you bend your back rather than your hip, a spinal source is worth investigating.
Less Common but Serious Causes
Avascular necrosis occurs when blood supply to the head of the thigh bone is disrupted, causing the bone to gradually die and eventually collapse. This process can take months to years and often starts with vague groin pain that worsens over time. The biggest risk factor is repeated use of high-dose corticosteroids like prednisone. Heavy alcohol use, certain blood disorders, and previous hip injuries also increase risk. If you’ve taken multiple courses of steroids and develop progressive hip pain, mention your medication history specifically.
Hip fractures, particularly in older adults with weakened bones, can cause sudden severe pain with an inability to bear weight. In younger people, stress fractures from overtraining can develop more gradually. Septic arthritis, an infection inside the joint, is rare but serious. It typically comes with fever, rapid-onset pain, and significant swelling.
How to Get Some Relief at Home
For non-traumatic hip pain that came on gradually or flared up recently, a few strategies can help while you figure out next steps. Rest from whatever aggravates it, including prolonged standing or walking if that’s a trigger. Apply ice or a cold pack for 10 to 20 minutes at a time, every one to two hours for the first three days, with a thin cloth between the ice and your skin. If there’s no swelling, moist heat or a heating pad can feel better.
Sleep position makes a big difference. Sleeping on your back with a pillow under your knees, or on your side with a pillow between your knees, keeps your hips aligned and takes pressure off the joint. If you have bursitis, avoid lying on the painful side entirely.
Gentle stretching helps maintain flexibility and prevents the muscles around the hip from tightening further. Focus on movements that don’t reproduce sharp pain. Slow, controlled hip circles, gentle hamstring stretches, and figure-four stretches (lying on your back, crossing one ankle over the opposite knee) are reasonable starting points. The goal in the early days is to stay mobile without provoking the pain.
Patterns That Point to Something Specific
Matching your symptoms to a pattern can help you have a more productive conversation with a doctor and understand what’s likely going on.
- Gradual groin pain, worse with walking, stiff in the morning: osteoarthritis, especially if you’re over 50.
- Outer hip pain, worse lying on that side at night: bursitis or tendon irritation.
- Clicking, catching, or locking in the hip: labral tear, possibly with underlying impingement.
- Pain radiating below the knee with tingling or numbness: spinal nerve involvement, likely sciatica or a disc problem.
- Sudden severe pain after a fall, can’t put weight on it: possible fracture.
- Progressive groin pain with a history of steroid use: avascular necrosis.
- Rapid onset with fever and joint swelling: possible joint infection.
If your pain came on suddenly after trauma, you can’t bear weight, or you have fever along with hip pain, those situations warrant prompt medical evaluation rather than a wait-and-see approach. For everything else, the patterns above can help you and your provider zero in on the right diagnosis faster.