AC Joint Separation Recovery Timeline: What to Expect

An AC joint separation, also called a shoulder separation, can range from a mild sprain to a complete dislocation of the joint between your collarbone and shoulder blade. Recovery time depends on the severity of the injury, your treatment plan, and how well you follow rehabilitation guidelines. This article walks you through the typical AC joint separation recovery timeline so you'll know what to expect-and when you may benefit from using a shoulder separation brace or support during the healing process.

Stage 1: Initial Injury and Diagnosis (Days 1-7)

• Symptoms: Pain at the top of the shoulder, swelling, bruising, and limited range of motion.

• Actions: Seek medical evaluation to determine injury grade (I-VI). Ice the area, immobilize the arm in a sling if advised, and manage pain with medication or prescribed therapy.

• Goal: Reduce pain and inflammation while preventing further injury.

Stage 2: Early Recovery and Protection (Weeks 1-3)

• Grade I-II: You may be able to resume light daily activities within 1-2 weeks.

• Grade III+: Longer immobilization may be required before starting rehab exercises.

• Support Role: Wearing a properly fitted shoulder separation support brace can stabilize the joint, reduce pain, and promote healing by limiting excessive movement.

• Goal: Maintain comfort while gradually restoring basic mobility.

Stage 3: Strengthening and Mobility (Weeks 3-6)

• Begin gentle range-of-motion exercises to prevent stiffness.

• Introduce strengthening exercises for the rotator cuff and surrounding muscles once pain subsides.

• Continue brace use if recommended by your provider, especially during activity.

• Goal: Restore functional movement while protecting the joint from re-injury.

Stage 4: Return to Normal Activities (Weeks 6-12)

• Most Grade I-II injuries allow for full return to activity within 6-8 weeks.

• Grade III injuries may take up to 12 weeks, depending on individual progress.

• Contact sports or heavy lifting should be avoided until cleared by your physician.

• Goal: Resume normal strength and function without pain or instability.

Stage 5: Long-Term Management (3+ Months)

• Continue targeted exercises to maintain shoulder strength and stability.

• For those with lingering instability, a shoulder separation brace may be beneficial during sports or high-risk activities.

• Surgery may be considered for chronic pain or functional limitations in severe cases.

During certain stages of recovery, wearing the right support can make a big difference in comfort and healing speed. Learn more in our guide on when to use a shoulder separation brace.

✅ Bottom line: Recovery from an AC joint separation varies widely based on the injury grade and treatment approach. Wearing a supportive brace during recovery can help protect the joint and speed your return to normal activities. If you're looking for medical-grade options, explore our full selection of shoulder separation braces and supports to find the right fit for your stage of healing.