What is frozen shoulder and why do women get it? Frozen shoulder, or adhesive capsulitis, is a condition that makes the shoulder painful and progressively stiff because the tissue around the joint tightens. It is more common in women, especially during midlife, but the exact reason for that difference is not known.
Hormonal changes may play a part, but they are not a proven cause. Diabetes, thyroid disorders, and keeping the shoulder still for a long time can also raise risk. This article explains typical symptoms, how clinicians diagnose the condition, and which treatments may help. You will also learn why forceful stretching can backfire and when shoulder pain needs prompt medical attention.
What frozen shoulder is and what happens inside the joint
Frozen shoulder is a condition in which the capsule surrounding the shoulder joint becomes inflamed, thickened, and tight. The capsule normally gives the joint room to move. As it contracts, the shoulder becomes painful and loses range of motion.
The medical name is adhesive capsulitis. “Adhesive” refers to tissues becoming stuck or less mobile, while “capsulitis” means inflammation of the joint capsule. Despite the name, the shoulder does not literally freeze, and the joint is not usually blocked by a piece of bone.
People with frozen shoulder often struggle to raise an arm overhead, reach behind their back, or put on a coat. Moving the arm may hurt, and stiffness can make everyday tasks difficult. Both active movement (when you move your arm) and passive movement (when someone else moves it for you) are commonly restricted.
That restriction helps distinguish frozen shoulder from some other problems. For example, a rotator cuff injury may make it painful or weak to lift your arm yourself, while another person can often move it farther. Only a clinician can assess the cause reliably, and more than one shoulder problem can occur at the same time.
What is frozen shoulder and why do women get it?
Frozen shoulder affects women more often than men, particularly in midlife. However, there is no single established explanation for the difference. Hormonal changes around perimenopause and menopause are possible contributors, but research has not shown that menopause directly causes frozen shoulder in every affected woman.
Women can develop the condition without a clear trigger, and having shoulder pain does not mean you have done something wrong. The condition is also associated with certain health conditions and situations, including:
- Diabetes: Frozen shoulder is more common among people with diabetes. The reason is not fully understood, but diabetes is an important risk factor to mention to a clinician.
- Thyroid disorders: An underactive or overactive thyroid is associated with a higher likelihood of frozen shoulder.
- Reduced shoulder movement: Keeping the arm still after an injury, operation, or illness can contribute to stiffness. Immobilization may be necessary for a time, so follow the treating clinician’s instructions about when and how to move the arm safely.
- Some other health conditions: Frozen shoulder is also associated with conditions such as stroke and heart disease. These associations do not prove that any one condition caused an individual case.
Frozen shoulder can affect anyone, including men and people who are not in midlife. It usually develops in one shoulder. The other shoulder can be affected later, but that is not inevitable.
Symptoms and the stages of frozen shoulder
The condition often develops gradually. Pain may come first, followed by increasing stiffness. Symptoms and their duration vary from person to person; the stages do not follow a precise timetable for everyone.
Freezing: pain and increasing stiffness
In the early, or “freezing,” phase, shoulder pain gradually increases and movement becomes more limited. Pain may be worse at night or when you lie on the affected side. Reaching, dressing, and other ordinary movements can become uncomfortable.
Frozen: stiffness becomes the main problem
In the “frozen” phase, pain may settle somewhat, but the shoulder remains stiff. Reaching overhead, out to the side, or behind your back may be particularly difficult. Less pain does not necessarily mean that normal movement has returned.
Thawing: movement gradually returns
During the “thawing” phase, range of motion gradually improves. Recovery can take many months and sometimes longer. Some people continue to notice stiffness or discomfort, so it is better not to assume the shoulder will recover on a fixed schedule.
These stages overlap, and a clinician may not be able to identify a precise stage from symptoms alone. A timeline can help explain why progress feels slow, but it should not replace an assessment if symptoms are worsening or your diagnosis is uncertain.
How clinicians diagnose frozen shoulder
A clinician will ask when the pain began, how it has changed, and which movements are difficult. They may ask about diabetes, thyroid problems, recent surgery or injury, and other health conditions. Tell them if the pain disrupts sleep or makes work and daily tasks hard.
During an examination, the clinician checks how far you can move your arm and how far it moves when they support it. Limited movement in both directions is a useful clue, especially when the shoulder has gradually become stiff. The examination also helps check for other causes, such as a rotator cuff problem or arthritis.
Imaging is not always needed to identify frozen shoulder. An X-ray may be used to look for arthritis or another bone-related cause. Ultrasound or MRI may be considered when the symptoms or examination suggest another problem. A scan alone does not confirm frozen shoulder; the findings need to fit your symptoms and examination.
Treatments compared: what may help and when
Treatment aims to manage pain and help you regain useful movement. The best approach depends on the severity and stage of symptoms, your health, and how you respond. A clinician can help you weigh likely benefits and risks.
| Option | What it may do | Best suited for | Important point |
|---|---|---|---|
| Guided movement and physical therapy | Maintains or gradually improves shoulder movement | People who need a safe, adjusted exercise plan | Stretching should be tolerable, not forceful or sharply painful. |
| Pain medicine | May reduce pain enough to support sleep and gentle movement | Short-term symptom relief, when medically appropriate | Ask a clinician or pharmacist about medication risks and your health conditions. |
| Corticosteroid injection | May reduce pain and inflammation, particularly earlier in the condition | Some people with substantial pain and limited movement | It is not a guaranteed cure, and effects vary. |
| Hydrodilatation | Fluid is injected into the joint to stretch the capsule | Selected cases where a specialist considers it appropriate | Availability and suitability vary; discuss expected benefits and risks. |
| Manipulation or arthroscopic release | A procedure aims to improve movement by stretching or releasing tight tissue | Persistent, disabling stiffness despite nonsurgical care | These procedures have risks and are generally considered selectively. |
What you can do safely at home
Gentle movement can help you maintain function, but pushing through strong pain can irritate the shoulder. A practical rule is to move within a comfortable or mildly stretching range and ease off if pain becomes sharp, severe, or lingers noticeably after the exercise.
- Ask for an assessment. If shoulder stiffness is new, worsening, or limiting daily life, arrange an appointment rather than assuming the cause.
- Use movement advice tailored to you. A physical therapist or clinician can suggest exercises that fit your symptoms and check your technique.
- Keep up comfortable daily activity. Use the arm for tasks that do not sharply increase pain, while avoiding repeated movements that provoke a flare.
- Track what changes. Note which movements hurt, whether sleep is affected, and whether your range of motion is improving. This can make follow-up conversations more useful.
- Review pain relief safely. Before using an over-the-counter medicine, check the label and ask a clinician or pharmacist if you have other health conditions, take other medicines, are pregnant, or are unsure whether it is suitable.
A common mistake is trying to force the shoulder loose. Aggressive stretching or having someone pull the arm can increase pain and irritation. More intensity does not necessarily mean faster recovery. A steady, tolerable plan is usually a safer starting point.
Another helpful distinction: rest does not mean keeping the arm completely immobile unless a clinician has specifically advised that. Too little movement can add stiffness, while too much or too-forceful movement can aggravate symptoms. The aim is appropriate movement, adjusted as symptoms change.
When shoulder pain needs medical attention
Make an appointment if shoulder pain and stiffness are interfering with sleep, dressing, work, or routine activities, or if they are not improving. Seek an assessment sooner if the pain began after an injury, your arm feels unusually weak, or you are uncertain whether the problem is frozen shoulder.
Get urgent medical care for sudden severe shoulder pain after a significant injury, a visibly deformed shoulder, or a hot, red shoulder with fever. Chest pressure or pain with shortness of breath, sweating, nausea, or pain spreading to the arm or jaw may signal an emergency unrelated to frozen shoulder; call emergency services.
If you have diabetes or a thyroid condition, mention it during the appointment. It may help the clinician assess your risk and coordinate care, but it does not by itself establish the diagnosis.
Frozen shoulder is a painful tightening of the tissue around the shoulder joint that limits movement. It is more common in women, especially in midlife, but hormones are only a possible contributor; the exact reason for the difference is still unclear.
If stiffness is affecting daily life, book an assessment with a clinician rather than forcing the shoulder through painful stretches. Ask about a movement plan suited to your symptoms and health, and seek urgent care for severe injury symptoms or signs of a possible emergency.
Understanding what is frozen shoulder and why do women get it can help you recognize the pattern without blaming yourself. A timely assessment can also rule out other causes and guide safer treatment.