Frozen Shoulder: What It Is, Why It Hurts, and How to Fix It

By Dr. Slovin
August 13, 2026

One day your shoulder works fine. A few weeks later, you can’t reach behind your back to zip a jacket. Combing your hair hurts. Reaching for a seatbelt feels impossible. This is what frozen shoulder feels like, and it can last for months, sometimes longer than a year.

What Is Frozen Shoulder?

Frozen shoulder happens when the capsule around your shoulder joint gets thick and tight. Doctors call it adhesive capsulitis. It affects about 1 in every 100 people, and it tends to show up in adults between 40 and 60 years old, especially women and people with diabetes. According to a 2023 review in the Journal of Manual and Manipulative Therapy, frozen shoulder moves through stages: pain first, then stiffness, then slow improvement. Each stage can last for months.

Why Does It Hurt So Much?

The shoulder joint capsule works like a sleeve wrapped around a ball and socket. When that sleeve tightens and forms scar-like tissue, every movement pulls against it. This is different from typical rotator cuff pain, where one specific tendon is torn or inflamed. With frozen shoulder, the whole joint locks up. That is why sleeping on that side, lifting a grocery bag, or reaching for a shelf can all bring sharp pain.

What Treatments Actually Work?

There is good news and mixed news here. A 2025 randomized trial in Scientific Reports followed 60 patients with frozen shoulder through four weeks of joint mobilization therapy. Both treatment groups improved significantly in pain and motion, though one hands-on technique called Gong’s Mobilization worked better for restoring range of motion.

Not every therapy shows a clear winner. A 2023 systematic review found that manual therapy and exercise produced only small, inconsistent benefits for pain and stiffness, based on low-quality evidence. That does not mean these therapies don’t help. It means researchers still need better studies to know exactly how much they help and for how long.

For people who don’t improve with hands-on care, doctors sometimes recommend a procedure called manipulation under anesthesia. A 2025 study in Clinical Orthopaedics and Related Research followed 146 patients and found that people treated earlier, before their stiffness had lasted more than 15 months, had noticeably better results afterward.

When manipulation and surgery are compared directly, a 2024 meta-analysis of 690 shoulders in the Asian Journal of Surgery found that arthroscopic surgery and manipulation under anesthesia led to similar outcomes overall, with surgery offering a small edge in arm-raising motion at three and six months.

Because the research is mixed, most doctors start with the least invasive options first. This usually means physical therapy, gentle stretching, and sometimes chiropractic care to help restore joint motion and ease the compensation pain that builds up in the neck and upper back, a pattern similar to what shows up with thoracic outlet syndrome.

How Can You Keep It From Coming Back?

Frozen shoulder rarely returns in the same shoulder once it fully heals, but it can show up in the other shoulder later. Staying active, keeping blood sugar in a healthy range if you have diabetes, and not ignoring shoulder stiffness in its early weeks all seem to help. If your shoulder is getting stiffer week by week, don’t wait a year to have it checked. As the Clinical Orthopaedics study showed, timing matters.

The Bottom Line

Frozen shoulder is frustrating because it takes time, and no single treatment fixes it overnight. The research so far points to a mix of movement-based therapy, patience, and early attention as your best shot at getting your reach back. If a few weeks of home stretching aren’t cutting it, it may be worth having a professional take a look, the same advice research on chiropractic care and back pain tends to point toward.

Sources

  1. Kirker K, O’Connell M, Bradley L, Torres-Panchame RE, Masaracchio M. “Manual therapy and exercise for adhesive capsulitis: a systematic review with meta-analysis.” Journal of Manual & Manipulative Therapy, 2023. https://doi.org/10.1080/10669817.2023.2180702
  2. Amjad F, Asghar H. “Comparative effects of Gong’s mobilization and mobilization with movement in patients with adhesive capsulitis: a randomized clinical trial.” Scientific Reports, 2025. https://doi.org/10.1038/s41598-025-88422-5
  3. Liu H, Cai H, Xu J, Jiang Y, Wang C, Huang Z, Ouyang H, Zhao J, Shen W. “Releasing Forces in Adhesive Capsulitis Are Important Indicators of Shoulder Stiffness and Postoperative Function.” Clinical Orthopaedics and Related Research, 2025. https://doi.org/10.1097/CORR.0000000000003365
  4. Xiao Y, Tang H, Meng J, Wu Y, Liu W, Liu P, Gao S. “Similar outcomes between arthroscopic capsular release and manipulation under anesthesia for frozen shoulder: A meta-analysis.” Asian Journal of Surgery, 2024. https://doi.org/10.1016/j.asjsur.2024.03.055