Frozen shoulder is most common in adults between 40 and 60, and it affects women more often than men. If you are asking who is frozen shoulder most common in, age, sex, diabetes, thyroid disease, and a period of limited shoulder movement are useful factors to consider.
This condition, also called adhesive capsulitis, causes pain and stiffness that can make everyday movements difficult. Here, you’ll learn who has a higher chance of developing it, what symptoms to watch for, and how doctors diagnose and treat it. You’ll also see when shoulder pain may point to a different problem and when it is time to seek medical advice.
Who is frozen shoulder most common in?
Frozen shoulder most often develops in people aged 40 to 60. It is more common in women than in men, though it can affect adults of any sex and, less often, people outside this age range. It is uncommon in children.
Age and sex are patterns, not a diagnosis. Shoulder stiffness in a middle-aged woman does not automatically mean adhesive capsulitis, and a younger man can still develop it. The condition is identified by its characteristic restriction of shoulder movement, considered alongside symptoms, medical history, and an examination.
It usually affects one shoulder at a time. Some people later develop it in the other shoulder, either while the first shoulder is still recovering or after it improves. Having it on both sides at once is less typical, so marked stiffness in both shoulders deserves an assessment for other causes as well.
What happens in a frozen shoulder?
The shoulder joint is surrounded by a flexible capsule of connective tissue. In adhesive capsulitis, that capsule becomes irritated and thickened, then tightens around the joint. The result is pain and reduced movement, often including movements such as reaching overhead, reaching behind your back, or putting on a coat.
“Frozen” does not mean the joint has literally locked or that a bone is stuck. The restriction comes from the capsule and surrounding tissues. It may develop without a clear injury, or after a shoulder has been kept still because of pain, surgery, or another health problem.
Doctors often describe three overlapping phases. The phases can help explain the pattern, but they do not happen on a precise schedule for everyone.
- Freezing phase: Pain gradually increases, and movement becomes more limited. Pain may be noticeable at night or when you move the arm.
- Frozen phase: Pain may ease somewhat, but stiffness can remain substantial. Reaching and rotating the arm may be especially difficult.
- Thawing phase: Movement gradually returns. Recovery can take many months, and improvement may be slow rather than steady from week to week.
Not everyone follows this exact sequence. Some people have persistent pain or stiffness, and recovery time varies. It is better to judge progress by changes in daily function and movement than by a fixed timeline.
Health conditions and circumstances that raise the risk
Being in the typical age group is one risk factor, but several health conditions and circumstances are also associated with adhesive capsulitis. An association means a condition occurs more often alongside frozen shoulder; it does not prove that it directly caused a particular person’s symptoms.
Diabetes
Diabetes is one of the clearest health-related risk factors. Frozen shoulder is more common among people with diabetes, and the condition can affect both shoulders over time. The reason for this link is not fully understood. Changes in connective tissue may contribute, but no single explanation accounts for every case.
If you have diabetes and notice ongoing shoulder pain or stiffness, mention both your symptoms and your medical history to a clinician. Keeping diabetes care on track is important for overall health, but it does not guarantee that shoulder stiffness will be prevented or quickly resolved.
Thyroid conditions
Thyroid disorders, including an underactive or overactive thyroid, are also associated with an increased chance of frozen shoulder. This link does not mean that every person with a thyroid condition will develop shoulder problems. It is a reason to share your thyroid history during an evaluation.
Limited movement after injury, surgery, or illness
Keeping the arm still for a long time can contribute to stiffness. This may happen after a fracture, shoulder injury, surgery, stroke, or another illness that limits movement. Not every person with reduced movement develops adhesive capsulitis, and immobilization is sometimes necessary for healing.
If you are recovering from surgery or an injury, follow your care team’s instructions about when and how to move the shoulder. Starting exercises too soon can interfere with treatment, while avoiding movement longer than advised can add to stiffness. The right balance depends on what was injured or repaired.
Other medical history
Some conditions affecting the heart, lungs, or nervous system have been linked with a higher likelihood of frozen shoulder. These relationships are not a substitute for a diagnosis, and the evidence may not explain why one individual develops the condition. Provide a clinician with your full health history, including previous shoulder trouble and major illnesses.
| Factor | How it relates | What to do with that information |
|---|---|---|
| Age 40 to 60 | This is the age range in which the condition is most often seen. | Consider it one clue, not proof that stiffness is frozen shoulder. |
| Female sex | Women are affected more often than men. | Symptoms still need an assessment regardless of sex. |
| Diabetes | It is a well-recognized associated condition; both shoulders may be affected over time. | Tell your clinician about diabetes and any changes in shoulder movement. |
| Thyroid disorder | Thyroid conditions are associated with higher risk. | Include your diagnosis and current treatment in your medical history. |
| Reduced shoulder movement | Prolonged restriction after illness, injury, or surgery can contribute to stiffness. | Follow your rehabilitation plan and ask before changing activity. |
What symptoms make frozen shoulder more likely?
The typical pattern is shoulder pain followed by increasing stiffness. Pain can start gradually, without a clear injury. It may feel worse when you move the arm, reach behind your back, or lie on the affected side. Some people have aching even when they are resting, particularly earlier in the course.
A key sign is that movement is limited in several directions, including when another person tries to move the arm for you. Clinicians call this passive movement. If you can move the shoulder normally when someone else moves it, but have difficulty lifting it under your own power, a muscle or tendon problem may be more likely. This distinction is helpful, but it cannot confirm a diagnosis by itself.
Common difficulties include reaching a high shelf, fastening clothing behind your back, washing your hair, and placing your arm into a sleeve. The severity varies, and not every person has the same pain pattern.
How doctors check for frozen shoulder
A clinician will usually ask when the pain began, how it has changed, whether there was an injury, and what movements are difficult. They may ask about diabetes, thyroid disease, surgery, and other health conditions. Your answers help distinguish a gradual stiffness problem from an injury or another joint condition.
During the examination, the clinician may compare both shoulders and test movement in several directions. They may assess both active movement (when you move your arm) and passive movement (when they move it for you). Restricted movement in both is an important feature of adhesive capsulitis.
An X-ray does not show the tight capsule itself, but it may help rule out problems such as arthritis or a fracture. Other imaging tests are not needed in every case. A clinician decides whether imaging or additional tests are appropriate based on your symptoms and examination.
Shoulder pain has several possible causes, including rotator cuff problems, arthritis, a fracture, or pain referred from another area. That is why stiffness should not be self-diagnosed based on age or risk factors alone. A healthcare professional can consider alternatives and recommend a treatment plan that fits the cause.
What helps, and what should you avoid?
Treatment aims to ease pain and gradually improve movement. The right approach depends on how much pain you have, how stiff the shoulder is, and the phase of the condition. Improvement is often gradual, so a plan should be adjusted if it causes a lasting increase in symptoms.
Keep movement gentle and guided
A clinician or physical therapist may recommend gentle range-of-motion exercises. These are movements designed to maintain or gradually increase how far the shoulder moves. The aim is usually to work within a tolerable range, not to force the arm through sharp pain.
A common misconception is that pushing harder will “break up” the stiffness faster. Forceful stretching can aggravate pain and make it harder to keep moving comfortably. Ask a qualified professional which exercises suit your condition, especially if symptoms followed surgery or an injury.
Manage pain so movement is possible
A healthcare professional may discuss pain-relief options based on your health, other medicines, and the risks of treatment. Do not assume that an over-the-counter medicine is suitable for you; some medicines interact with other drugs or are unsafe with certain health conditions. A clinician or pharmacist can help you choose safely.
Some people are offered a corticosteroid injection, which is a medicine injected into or around the shoulder to reduce inflammation and pain. It may help with symptoms for some patients, particularly when pain makes movement difficult. It is not a cure for every case, and its suitability and timing require an individual medical discussion.
Physical therapy and other procedures
Physical therapy can provide a structured way to restore movement and adapt exercises as the shoulder changes. If stiffness remains severe despite appropriate nonsurgical care, a specialist may discuss procedures that loosen the capsule. These options have possible risks and are not necessary for everyone.
Recovery may take months or longer. Some people regain much of their movement, while others have lingering stiffness. A realistic plan focuses on safe progress and useful daily movement rather than promising a specific recovery date.
When to get medical care
Arrange an assessment if shoulder pain and stiffness persist, interfere with daily activities, or continue to worsen. Early advice can help identify the cause, guide safe movement, and manage pain. This is particularly useful if you have diabetes, a thyroid disorder, or a recent operation or injury.
Seek urgent medical care if shoulder pain follows a significant injury, the shoulder looks deformed, or you cannot use the arm. Get emergency help for shoulder pain accompanied by chest pressure, shortness of breath, faintness, or other symptoms that could signal a heart problem. Sudden weakness, numbness, fever, or a hot, red joint also warrants prompt medical attention.
Practical ways to avoid common mistakes
- Do not treat age as a diagnosis. A typical age or risk factor raises suspicion but does not distinguish frozen shoulder from other causes.
- Do not completely stop moving the shoulder without advice. If movement is safe, gentle activity may help maintain function. Follow your clinician’s limits after an injury or operation.
- Do not force painful stretches. A strong, lasting flare is a sign to pause and ask whether the exercise needs changing.
- Track useful changes. Note which daily tasks are easier or harder and whether pain disrupts sleep. These details can make a follow-up visit more productive.
- Share relevant medical history. Mention diabetes, thyroid disease, surgery, and any period when the arm was kept still.
One detail people often miss is that the shoulder can be stiff even when pain is starting to ease. Less pain does not always mean that normal movement has returned. Continuing an appropriate, gentle plan may still matter during that stage.
Frozen shoulder is most common in adults aged 40 to 60 and occurs more often in women. Diabetes, thyroid conditions, and periods of limited shoulder movement are also associated with higher risk, but none of these factors confirms the diagnosis.
If you have persistent pain and stiffness, book an assessment rather than forcing stretches or assuming the cause. Bring a list of your health conditions and note which movements are difficult so your clinician can guide the next step.