Making Sense of Hip Pain

Why does my hip hurt?

Hip pain has many causes, and the single most useful thing you can do before an appointment is notice exactly where it hurts. The word "hip" covers a wide zone — the groin, the front of the thigh, the bony point on the side, the buttock — and each location points toward a different set of problems. The joint itself, the muscles and tendons around it, the bursae, and even the lower spine can all send pain into the region.

The reassuring part is that most hip pain is mechanical and not dangerous: arthritis, tendon irritation, muscle strains, and referred back pain make up the large majority of cases. This guide walks through the region by location — groin and front, outer side, and buttock or down the leg — and points to what each pattern usually means. It is a map for making sense of hip pain, not a substitute for an exam, but it can make that exam far more productive.

Reading hip pain by where you feel it

Location is the quickest way to narrow down hip pain, because the structures that can hurt are grouped by region. Pain deep in the groin tends to be the joint; pain on the outer side tends to be soft tissue; pain in the buttock or radiating down the leg often traces back to the spine. The table below maps the common patterns.

This is a starting point, not a diagnosis — patterns overlap, and more than one thing can hurt at once. But knowing which zone your pain lives in turns a vague complaint into a specific question.

Groin and front-of-hip pain — the joint itself

Pain felt deep in the groin and front of the thigh most often comes from the hip joint itself, because the joint sits deep and toward the front of the pelvis. The leading cause in adults past about 50 is osteoarthritis — the slow wearing of the cartilage inside the joint — which brings groin pain, stiffness after rest, and a gradual loss of motion 1Ref 1American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Osteoarthritis of the Hip.Hip osteoarthritis causes progressive groin and hip pain, stiffness, and loss of motion, and is the leading joint cause of chronic hip pain; initial management is nonsurgical.2Ref 2National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) (2023).Osteoarthritis.Osteoarthritis is the most common form of arthritis, a degenerative joint disease from cartilage breakdown that becomes more common with age.. It can refer down to the knee, so "knee pain" is sometimes the hip in disguise.

Other joint-related causes live in the same zone. A labral tear or hip impingement can cause groin pain and catching with deep bends and pivots, often in younger and more active people. A hip flexor strain in the iliopsoas muscle produces front-of-hip pain that flares with sprinting, kicking, or lifting the knee — an injury of load rather than wear. Because these share territory with arthritis, sorting them usually takes an exam and sometimes imaging, but the common thread is that true joint pain speaks through the groin. If your knee also hurts, it is worth remembering the two are neighbors: making sense of knee pain sometimes starts at the hip.

Outer-hip pain — the side of the hip

Pain on the bony point on the outside of the hip — especially the kind that makes it hurt to lie on that side at night — is usually not the joint at all. It typically comes from the tendons and the bursa that sit over that bony prominence, a cluster of problems clinicians often group as greater trochanteric pain syndrome. This is one of the most common reasons people believe they have "hip arthritis" when the joint is actually fine.

The distinction matters because the treatment differs. This is exactly the hip arthritis vs bursitis question, and it usually comes down to groin pain or side pain: the groin points to the joint, the outer point to soft tissue. Outer-hip pain tends to respond to load management, targeted strengthening of the hip muscles, and patience, rather than anything aimed at the joint. Getting the location right keeps care from being aimed at the wrong structure — a surprisingly common mistake when "hip pain" is taken at face value.

Buttock and pain down the leg — often the back, not the hip

When hip pain sits in the buttock or shoots down the back of the leg, the source is frequently the lower back rather than the hip joint. Irritation of a spinal nerve root — sciatica — can radiate through the buttock and down the leg in a way that feels like a hip problem, and low back pain itself commonly refers into the buttock and hip region 3Ref 3American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Low Back Pain.Low back pain and irritated spinal nerve roots can refer pain into the buttock, hip, and leg, mimicking a hip problem.. This is the classic hip pain vs sciatica confusion.

In older adults, narrowing of the spinal canal — lumbar spinal stenosis — can produce buttock, hip, and leg pain and heaviness that build with walking and ease when you sit or lean forward 4Ref 4American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Lumbar Spinal Stenosis.Lumbar spinal stenosis narrows the space around spinal nerves and causes back, buttock, hip, and leg pain (neurogenic claudication) that worsens with walking and eases when sitting or leaning forward.. The tell is often that the pain is worse with certain spine positions or with walking distance, rather than with moving the hip joint directly. Working out whether it is sciatica vs hip pain usually means testing both the hip and the back. Pain very low and central, over the tailbone, is a different problem again — lingering tailbone pain has its own local causes and is rarely about the hip joint.

What helps most hip pain

For the mechanical causes that make up most hip pain, the first-line answer is remarkably consistent: keep the joint moving and build the muscles around it. Structured exercise and physical therapy are the backbone of care for hip osteoarthritis and for most soft-tissue hip problems, because they reduce pain and preserve function better than rest or passive treatments alone 5Ref 5Cibulka MT, Bloom NJ, Enseki KR, et al. (2017).Hip Pain and Mobility Deficits—Hip Osteoarthritis: Revision 2017.Physical therapy — education, manual therapy, and individualized exercise — is a core, evidence-supported treatment for hip osteoarthritis and mobility deficits.. A therapist can tailor the work to whichever pattern you have.

Medication supports that foundation rather than replacing it. Anti-inflammatory drugs can ease a flare, and for some conditions a joint injection helps for a while. One common choice is weaker than expected: acetaminophen (paracetamol) offers only a small, clinically unimportant effect on hip and knee osteoarthritis pain 6Ref 6Machado GC, Maher CG, Ferreira PH, et al. (2015).Efficacy and safety of paracetamol for spinal pain and osteoarthritis: systematic review and meta-analysis of randomised placebo controlled trials.Paracetamol (acetaminophen) provides only a small, not clinically important effect on hip and knee osteoarthritis pain.. The practical takeaway across nearly all mechanical hip pain is that movement, load management, and time do most of the work, and medication is an adjunct.

For most hip pain, exercise and load management are the treatment; medication is a supporting player 5Ref 5Cibulka MT, Bloom NJ, Enseki KR, et al. (2017).Hip Pain and Mobility Deficits—Hip Osteoarthritis: Revision 2017.Physical therapy — education, manual therapy, and individualized exercise — is a core, evidence-supported treatment for hip osteoarthritis and mobility deficits..

When hip pain needs a faster look

Most hip pain is safe to manage patiently, but some patterns call for prompt care rather than watchful waiting. A fall in an older adult followed by hip or groin pain and trouble bearing weight can mean a fracture and needs urgent imaging. A hip that turns hot, swollen, and severely painful alongside a fever can signal a joint infection, which is an emergency.

Other signs that warrant a timely evaluation include hip pain with unexplained weight loss or night sweats, pain that is constant and unrelieved by any position, or new weakness, numbness, or loss of bladder or bowel control alongside back and leg pain. These do not describe the ordinary aches of arthritis or tendon strain; they point to problems where being seen sooner changes the outcome. When in doubt, the location map in this guide helps you describe the pain precisely — and a precise description is what helps a clinician move quickly.

When the problem is somewhere else

Pain has a habit of traveling, and the hip is a crossroads. If your pain does not fit any of the hip patterns here, it may belong to a neighboring region with its own map. Knee pain and hip pain often trade places, since the hip refers to the knee and the knee's problems can change how you load the hip; if the knee is the real trouble, that is a separate question of why does my knee hurt. Back pain that spills into the hip belongs to the spine.

The same location-first logic works elsewhere in the body. Foot and ankle pain, hand and wrist pain, and shoulder pain each sort out by where they sit and what movements provoke them. Wherever the pain lives, the method is the same: notice the exact spot, notice what makes it better and worse, and bring that to the visit. It is the single most useful thing you can do to turn "my hip hurts" into an answer.