Overview
Frozen shoulder, also called adhesive capsulitis, happens when the capsule surrounding your shoulder socket joint (the glenohumeral joint) thickens and tightens, gradually restricting movement. It tends to move through three recognizable phases — freezing, frozen, and thawing — and can take many months to fully resolve (Mayo Clinic).
Rehab for frozen shoulder looks different depending on which phase you're in. Pushing hard during the painful "freezing" phase can backfire, while gentle, consistent stretching matters most once stiffness becomes the main problem.
This guide is general education. Your physiotherapist can identify which phase you're in and adjust intensity accordingly.
Who This Guide Is For
- People diagnosed with adhesive capsulitis (frozen shoulder)
- People with gradually worsening shoulder stiffness and pain, particularly with reaching overhead or behind the back, confirmed by a health professional
Pair this guide with the adhesive capsulitis injury page for more on causes and diagnosis.
Goals of Rehabilitation
- Manage pain, especially during the early, most painful phase
- Preserve and gradually restore range of motion
- Avoid aggressive stretching that can inflame the capsule further
- Maintain strength and function in the rest of the arm and shoulder blade
- Support the joint through to full or near-full motion recovery
Phase 1: Early Stage ("Freezing" Phase)
Typical timing: Roughly the first 2–9 months, though this varies widely.
Goals:
- Reduce pain, which is often the dominant symptom in this phase
- Maintain whatever comfortable motion is available
- Avoid forcing stretches into sharp pain, which can increase irritation
Exercises and stretches:
- Pendulum exercise — gentle, gravity-assisted motion that doesn't require active stretching
- Isometric shoulder holds — maintains muscle activation without moving the stiff joint
- Gentle, pain-free only range-of-motion movement in whatever directions are available (guided by your physiotherapist)
In this phase, less is often more. The priority is calming irritation, not "pushing through" stiffness.
Criteria to move to Phase 2:
- Resting pain has settled to mild or minimal
- Sharp, unpredictable pain flares are becoming less frequent
- You and your physiotherapist agree the shoulder can tolerate more active stretching
Phase 2: Middle Stage ("Frozen" Phase)
Typical timing: Roughly months 4–12 (overlaps with Phase 1 timing, since phases blend together).
Goals:
- Gradually regain range of motion as pain decreases
- Stretch consistently, since stiffness is now the main limiting factor
- Keep the surrounding shoulder muscles active
Exercises and stretches:
- Sleeper stretch — targets internal rotation range, often one of the most limited directions
- Doorway pec stretch — helps open up the front of the shoulder and chest
- Cross-body stretch — gentle stretch for the back of the shoulder
- Towel stretch — internal rotation — functional stretch for reaching behind the back
- Wall slides — active-assisted overhead motion practice
Consistency matters more than intensity here. Short, frequent stretching sessions (multiple times a day) tend to work better than occasional long ones.
Criteria to move to Phase 3:
- Measurable improvement in range of motion over several weeks
- Stretching causes only mild, brief discomfort rather than sharp pain
- Daily tasks are becoming more manageable
Phase 3: Late Stage / Return to Activity ("Thawing" Phase)
Typical timing: Roughly months 12–24, sometimes longer.
Goals:
- Continue regaining motion toward your personal normal
- Rebuild strength that was lost during the stiff phases
- Return to full daily, work, and recreational activities
Exercises and stretches:
- External rotation with band — rebuilds strength as motion returns
- Internal rotation with band — restores strength in a commonly weak direction
- Scapular retraction row — strengthens shoulder blade support muscles
- Overhead triceps and shoulder stretch — works toward full overhead flexibility
- Posterior capsule stretch — addresses any remaining tightness at the back of the joint
Criteria to consider yourself "returned":
- Motion is at or close to your pre-frozen-shoulder baseline
- Strength has caught back up in the previously stiff arm
- You can do overhead and behind-the-back tasks without significant limitation
Signs You're Progressing Well
- Range of motion is slowly increasing, even if progress feels slow month to month
- Pain, especially night pain, is settling over time
- You need less help from your other arm for daily tasks like dressing
Signs You Should Slow Down or See a Professional
- Stretching consistently causes sharp pain that lingers for hours afterward
- Motion is getting worse rather than better over several weeks
- New numbness, tingling, or significant weakness
- No change at all after many months of consistent rehab — this may warrant discussing other options, like a corticosteroid injection or joint manipulation, with your physician
Typical Timeline
Frozen shoulder has one of the longest and most distinct recovery timelines of any shoulder condition. See the frozen shoulder recovery timeline for a full breakdown by phase.
Related Injury
- Adhesive capsulitis (frozen shoulder) — full explanation of causes, symptoms, and diagnosis
References
- Mayo Clinic. "Frozen shoulder." https://www.mayoclinic.org/diseases-conditions/frozen-shoulder/symptoms-causes/syc-20372684
- Mayo Clinic Orthopedics & Sports Medicine. "Tips to help a frozen shoulder." https://sportsmedicine.mayoclinic.org/news/tips-to-help-a-frozen-shoulder/
- PubMed. "Adhesive capsulitis of the shoulder: therapeutic contribution of subacromial bursography." https://pubmed.ncbi.nlm.nih.gov/9923046/
This information is for education only and is not a medical diagnosis. InjuryAtlas does not replace an assessment by a qualified health professional. If you have severe pain, visible deformity, numbness, loss of function, or symptoms that are getting worse, seek medical care promptly.