Groin pain affects millions of people each year, from weekend joggers to elite athletes to older adults simply going about their day. Understanding the root cause is essential because the treatment for one type of groin pain can be very different from another. Here are ten common causes worth knowing about, along with practical steps to help you move forward.
1. Adductor Muscle Strain
The adductor muscles run along your inner thigh and help pull your legs together. A sudden sprint, a change of direction, or an awkward step can overstretch or tear these muscles. This is one of the most frequent causes of groin pain, especially among soccer players, hockey players, and runners. Research indicates that active exercise therapy and multimodal treatment with manual therapy show moderate evidence for helping adductor-related groin pain. Rest, ice, and a gradual return to activity through guided strengthening exercises are typically the first line of care.
2. Femoroacetabular Impingement
Femoroacetabular impingement, or FAI, occurs when extra bone grows along the hip joint, creating an irregular fit between the ball and socket. This abnormal contact can damage cartilage and cause a deep, aching groin pain that worsens with sitting or twisting movements. According to research published in PubMed, FAI accounts for roughly 32 percent of surgical cases of groin pain in athletes, making it the leading structural cause. If you notice stiffness alongside your groin discomfort, ask your doctor whether imaging of your hip joint might be appropriate.
3. Athletic Pubalgia (Sports Hernia)
Athletic pubalgia involves a soft tissue injury in the lower abdomen or groin area. Unlike a traditional hernia, there is usually no visible bulge. The pain tends to start gradually and intensify during activities like kicking, sprinting, or crunching movements. Studies suggest it is the second most common surgical cause of groin pain in athletes, accounting for about 24 percent of cases. A sports medicine specialist can help distinguish this from other causes using specific physical tests and imaging.
4. Inguinal Hernia
An inguinal hernia happens when tissue, often part of the intestine, pushes through a weak spot in the abdominal wall near the groin. You may notice a bulge that becomes more visible when coughing or standing. The pain can range from a dull ache to sharp discomfort, and it typically worsens with lifting or straining. Inguinal hernias are far more common in men than in women. If you suspect a hernia, schedule a medical evaluation promptly because some hernias require surgical repair to prevent complications.
5. Hip Osteoarthritis
Osteoarthritis of the hip involves the gradual wearing down of cartilage that cushions the joint. Many people are surprised to learn that hip arthritis often presents as groin pain rather than pain on the outside of the hip. The discomfort tends to develop slowly over months or years. Mornings are often the worst, with stiffness that eases after movement. Maintaining a healthy weight, staying active with low-impact exercise, and working with a physical therapist can help manage symptoms before more invasive treatments become necessary.
6. Hip Labral Tear
The labrum is a ring of cartilage that lines the rim of your hip socket, providing stability and cushioning. A tear in this tissue can cause a catching or locking sensation in the hip along with deep groin pain. Labral tears can result from repetitive motions, traumatic injuries, or structural abnormalities like FAI. Some people live with small tears and barely notice them. However, if the pain limits your daily activities, a healthcare provider may recommend physical therapy, corticosteroid injections, or in some cases arthroscopic surgery.
7. Osteitis Pubis
Osteitis pubis is an inflammatory condition affecting the pubic symphysis, the joint where your two pelvic bones meet at the front. It causes a nagging, central groin pain that can radiate to the inner thighs. Runners, soccer players, and anyone performing repetitive kicking or pivoting motions are particularly vulnerable. Interestingly, research suggests that groin pain during hip adduction movements may not always stem from adductor tendinitis alone, and a pelvic belt intervention can improve both pain and strength outcomes. Targeted rest and progressive rehabilitation are usually effective.
8. Kidney Stones
Sometimes groin pain has nothing to do with muscles or joints. Kidney stones can cause intense, radiating pain that travels from the lower back down into the groin area. The pain often comes in waves and may be accompanied by nausea, blood in the urine, or a frequent urge to urinate. Small stones may pass on their own with plenty of fluids and pain management. Larger stones might need medical intervention such as lithotripsy or surgical removal, so seek urgent care if the pain is severe or you develop a fever.
9. Nerve Entrapment
Nerves in the groin area, particularly the ilioinguinal and obturator nerves, can become compressed or irritated. This condition is called nerve entrapment, and it produces burning, tingling, or shooting pain in the groin. It can happen after surgery, from scar tissue, or due to repetitive athletic movements. The pain may worsen with certain positions and improve with rest. Diagnosis often involves ruling out other causes first. Treatment may include nerve blocks, physical therapy focused on nerve gliding exercises, or adjustments to your training routine.
10. Stress Fracture of the Pelvis or Femur
A stress fracture is a tiny crack in the bone caused by repetitive force rather than a single impact. In the groin area, stress fractures most commonly affect the pubic ramus or the femoral neck. Distance runners and military recruits face higher risk. The pain typically starts mildly during activity and gradually worsens over days or weeks. Ignoring it can lead to a complete fracture, so early diagnosis through MRI is important. If you experience groin pain that intensifies with weight-bearing exercise and improves with rest, talk to your doctor sooner rather than later.
Groin pain has many possible causes, and pinpointing the right one is the key to effective treatment. If your pain persists beyond a few days, worsens with activity, or is accompanied by swelling, fever, or difficulty walking, schedule an appointment with a healthcare professional who can guide you toward the right diagnosis and recovery plan.
Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before making health decisions.
