Shoulder pain warning signs: when to get help

Most shoulder pain isn't serious. Learn the signs that mean call 9-1-1 (like shoulder pain with chest symptoms), go to emergency, or see your doctor soon (like sudden weakness after an injury).

5 min read · last reviewed October 1, 2026

Most shoulder pain comes from the muscles, tendons and joint of the shoulder itself, and gets better with time and exercise. But now and then, shoulder pain is a sign of something that needs fast care. This page helps you and your family know what to watch for and what to do.

Read it once, share it, and keep it handy. You'll probably never need it, but it is good to know.

Call 9-1-1 or your local emergency number

Shoulder pain that could be your heart

Pain from a heart attack doesn't always stay in the chest. It can spread to, or start in, the shoulder, arm, neck, jaw or back. This is more likely if the pain:

• Comes with chest discomfort: pressure, squeezing, fullness, burning or heaviness
• Comes with shortness of breath, sweating, nausea or light-headedness
• Comes on with effort and eases with rest, or comes on suddenly at rest
• Doesn't change when you move your shoulder

Women, older adults and people with diabetes may have milder or less typical symptoms. If you're not sure, call 9-1-1. Don't drive yourself to hospital.

Go to an emergency department now

• After a fall or injury, your shoulder looks out of shape or "squared off," you can't move your arm at all, or the pain is severe. This can be a dislocation or a broken bone. Support your arm in the most comfortable position, and don't try to push the shoulder back in yourself.
• Your arm or hand is cold, pale, blue or numb after an injury.
• Your shoulder is hot, red, swollen and very painful to move, and you have a fever or chills or feel unwell. This can be a joint infection, which needs fast treatment.
• Sudden, severe shoulder-tip pain with belly pain or trouble breathing.

See your doctor soon (within days)

• You suddenly can't lift your arm properly after a fall, a jolt or lifting something heavy. You may have torn a rotator cuff tendon. Some of these tears do better if they are repaired within a few weeks, so get checked within a week or two.
• You think you may have dislocated or broken your shoulder, but can still move it a little.
• Numbness, tingling or weakness spreading down your arm into your hand. This can come from a pinched nerve in the neck.
• Constant pain that keeps getting worse, including at night and at rest, and doesn't ease with changes in position.
• A history of cancer and new shoulder pain, or a lump or swelling, or weight loss without trying.
• Your shoulder is getting stiffer and stiffer, especially if you have diabetes. This may be frozen shoulder, and early treatment can help with the pain.
• After a shoulder injection or surgery: fever, spreading redness, warmth, or pain and swelling that is getting worse.

See your doctor or physiotherapist in the next few weeks

• Your shoulder hasn't started to improve after 6 to 12 weeks of exercise and self-care.
• Pain is stopping you from working, sleeping or caring for yourself.
• You aren't sure which exercises are safe, or which pain medicine is right for you.
• You feel low or stuck because of your pain.

What will the doctor do?

Your doctor will ask how the pain started, where it is and what makes it worse. They will check how your shoulder moves, test your strength, and check your neck and arm. If you have had an injury or have warning signs, you may need an X-ray, ultrasound or MRI. If not, you may not need a scan at all, which is a good sign.

Don't wait because you don't want to "bother" anyone

It is always okay to get checked. Chest symptoms and badly injured shoulders need fast care, and emergency teams would much rather see you and find it's nothing serious.

Something you can do today: Tell your family that shoulder or arm pain with chest discomfort or shortness of breath means call 9-1-1.

Something your family can do: Learn Hands-Only CPR. It takes only a few minutes and could help save a life.

Questions to ask your care team

• Which warning signs should I watch for, given my health history?
• Could my shoulder pain be coming from my neck or my heart?
• If I can't lift my arm after an injury, how soon should I be seen?
• Do I need a scan now, or only if things don't improve?
• Who can I call after hours?

This article is general information, not medical advice. Talk with your health care team about your own situation. In an emergency, call 9-1-1 or your local emergency number.

In an emergency, call 9-1-1 or your local emergency number.

General information, not medical advice. It does not replace your own care team. If you think you or someone else is having a medical emergency, call 9-1-1 or your local emergency number. If you are in crisis or thinking about suicide, call or text 9-8-8 (Canada and the US).

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