Frozen shoulder: stiffness, stages and what helps

How frozen shoulder develops

The shoulder joint is wrapped in a capsule of connective tissue. In frozen shoulder that capsule becomes inflamed and then scarred and contracted, which physically limits how far the arm can move. The American Academy of Orthopaedic Surgeons describes three overlapping stages.

In the freezing stage, pain builds gradually and motion shrinks, over roughly six weeks to nine months. In the frozen stage, pain may ease but stiffness remains, which makes reaching overhead, fastening a bra or reaching a back pocket difficult; this lasts about four to six months. In the thawing stage, motion slowly returns over six months to two years. Night pain, especially lying on the affected side, is common early on.

Is it caused by menopause?

Frozen shoulder is most common in women in their 40s and 50s, which overlaps with perimenopause, and MedlinePlus lists hormonal changes such as menopause among the risk factors. Researchers have proposed that falling estrogen could affect inflammation and connective tissue, but this has not been proven, and there is no good evidence that hormone therapy prevents or treats frozen shoulder.

In practice, the more important risk factors to check are diabetes and thyroid disease. People with diabetes tend to have stiffer shoulders that take longer to recover. Other triggers include keeping the arm still for a long time after surgery, a fracture or an injury, heart surgery, breast surgery, and Parkinson's disease.

Other conditions that can look similar

Not every stiff, painful shoulder is frozen shoulder. An in-person exam is needed to separate it from:

• Rotator cuff tendon irritation or a tear, which usually limits active lifting more than passive movement
• Shoulder osteoarthritis or calcium deposits, which show up on x-ray
• Polymyalgia rheumatica, which typically causes morning stiffness in both shoulders and hips after age 50
• Pain referred from the neck, such as from a pinched nerve or cervical disk disease
• Pain referred from the heart, lungs or gallbladder

When to see a doctor urgently

Shoulder pain is sometimes a sign of something that cannot wait:

• Call 911 for shoulder, arm or jaw pain with chest pressure, shortness of breath, sweating, nausea or light-headedness
• Seek same-day care after a fall or blow, if you suddenly cannot lift the arm, or if the shoulder is hot, red and swollen or you have a fever
• Get prompt in-person evaluation for new shoulder stiffness if you have a history of cancer, or for pain with numbness or weakness in the arm or hand
• Arrange an exam if stiffness has been progressing for weeks without a diagnosis

What testing can help

Frozen shoulder is diagnosed by a hands-on examination that compares how far the shoulder moves on its own and when someone else moves it. An x-ray may be used to rule out arthritis or calcium deposits, and an MRI is usually not necessary.

Blood tests do not diagnose frozen shoulder, but they are useful for finding risk factors. Because diabetes and thyroid disease are strongly linked, checking A1c or fasting glucose and TSH is reasonable, especially if they have not been tested recently. If both shoulders and hips are stiff in the morning, inflammation markers such as CRP and ESR can help screen for polymyalgia rheumatica.

Treatment options in general terms

Physical therapy focused on gentle, regular stretching is the mainstay of treatment and may need to be done daily. Anti-inflammatory pain relievers and corticosteroid injections into the joint can reduce pain and make therapy more tolerable. Hydrodilatation, in which fluid is injected to stretch the capsule, is another option.

If months of nonsurgical treatment fail, an orthopedic surgeon may recommend manipulation under anesthesia or arthroscopic release of the tight capsule, followed by more physical therapy. Many people recover most of their motion without surgery, although full recovery can take a year or more. Improving blood sugar control may help recovery in people with diabetes.

Day-to-day tips while it heals

Living with a frozen shoulder for months is wearing, and small adjustments help. Sleeping on the other side or on your back with a pillow supporting the affected arm can ease night pain. Warmth before stretching often makes movement easier. Keep doing gentle daily tasks with the arm within a comfortable range rather than holding it completely still, since immobility tends to worsen stiffness.

Set realistic expectations: progress is measured in weeks and months, not days. Tracking how far you can reach up a wall or behind your back once a week shows gains that are hard to feel day to day.

How HealifyMD can help

HealifyMD does not examine or treat shoulders, and frozen shoulder needs an in-person diagnosis and physical therapy. What we can do is check the metabolic and thyroid picture behind it: a HealifyMD clinician can order labs including A1c, glucose and thyroid function and help you act on abnormal results. If you are in perimenopause and also struggling with hot flashes, sleep or other symptoms, we can talk through menopause care separately.