Osteitis Pubis in AFL: The Groin Injury That Ends Seasons and How to Avoid It

May 8

Groin pain in AFL players is common. But not all groin pain is the same, and the most common misdiagnosis in the game is treating osteitis pubis like an adductor strain.

They share a postcode anatomically. The treatment is completely different.

The Anatomy of the Problem

The pubic symphysis is the cartilaginous joint where the two halves of the pelvis meet at the front. Under normal conditions, it allows minimal movement. In athletes who perform repeated cutting, kicking, and sprinting, the shear forces across this joint accumulate over time.

Osteitis pubis describes the degenerative and inflammatory changes at the pubic symphysis and the surrounding bone, driven by this chronic loading. The adductor longus, which attaches close to the pubic tubercle, and the lower abdominals, which attach above, create opposing forces across the joint with every kick and direction change. When the stabilising muscles around the pelvis are insufficient to control this shear, the joint takes the load instead.

Understanding the anatomy of the pubic region, the relationship between the adductors, hip flexors, obliques, and pelvic floor, is fundamental to managing this injury. This is covered in depth in our online anatomy course.

Why AFL Is High Risk

AFL combines more kicking volume, high-speed running, and change-of-direction demands than almost any other field sport. The dominant kicking leg adductor is consistently stronger than the non-dominant side in AFL players, creating an asymmetry in pubic symphysis loading.

Pre-season training, particularly when volume increases rapidly after an off-season, is the highest-risk window for onset.

Symptoms

Osteitis pubis typically presents as a deep, medial groin ache that may refer into the inner thigh and lower abdomen. It is worsened by kicking, sprinting, and pivoting. Adductor squeeze tests are often painful. Single-leg activities load the symptomatic side and reproduce pain.

The condition is confirmed on MRI, which shows bone marrow oedema at the symphysis and surrounding structures.

Differential Diagnosis

The difficulty with groin pain in AFL is that multiple structures can be involved simultaneously: adductor tendinopathy, inguinal-related groin pain, hip flexor strain, and pubic stress reactions can all present similarly and can all co-exist. The Copenhagen classification is the current standard for categorising athletic groin pain.

Treatment

There is no quick fix for osteitis pubis. Conservative management takes time, but it works.

Phase 1 (symptom control): Reduce high-load activities (kicking, sprinting, cutting). Maintain fitness through cycling and swimming. Begin core and adductor endurance work.

Phase 2 (progressive loading): The Copenhagen adductor exercise is the strongest evidence-based intervention. Adductor and hip flexor strengthening through progressive load.

Phase 3 (functional return): Straight-line running, progressive kicking volume, rotation and cutting.

Timeline: 8-16 weeks is realistic for a return to full training. Rushing this phase is the primary reason for relapse.

Prevention

Pre-season adductor strength screening, tracking adductor-to-abductor strength ratios, and managing pre-season kicking volumes are the three most important preventive strategies. The Copenhagen exercise performed twice weekly throughout the season reduces adductor and groin injury rates by over 40% in football populations.

Want to understand this injury at a deeper anatomical level? The Club Physio’s online anatomy course breaks down the structures, biomechanics, and load patterns behind the most common sports injuries. Built for athletes and therapists alike. [Explore the course at theclubphysio.com.au]

josh zoppo