After a fall or injury: call 999 or go to A&E
Call 999 or go to A&E after an injury (don't drive yourself) if the arm, wrist or hand is numb, tingling or has pins and needles; a bone is sticking out or a bad cut is bleeding heavily; or the wrist, thumb or a finger has changed shape, is at an odd angle, or has turned blue, grey, white or cold.
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Same day
Same day (NHS 111): severe wrist pain; you feel faint, dizzy or sick from the pain, or you feel unwell, hot, cold or shivery; you heard a snap, grinding or popping noise when you hurt it; you can't move your wrist or hold things; your wrist has changed shape or colour; a lump on your wrist is very painful, hot or red (redness may be harder to see on brown and black skin); or you have lost the feeling in part or all of your hand. These might be signs of a broken wrist or an infection.
Same day: after a fall onto an outstretched hand, pain or tenderness at the base of the thumb on the back of the wrist (the hollow called the snuffbox), even if the wrist moves well or the first X-ray was normal. A broken scaphoid can hide on the first X-ray and is slow to heal if it's missed, so ask what follow-up is planned.
Same day: you have lost the feeling in part or all of your hand.
Same day (urgent GP appointment or NHS 111): sudden, severe pain in one joint, with swelling, a change in skin colour or difficulty moving it, especially if you feel unwell, hot, cold or shivery or have a high temperature (although not everyone has one). It could be an infection in the joint, gout or calcium crystals (pseudogout), and only a sample of fluid from the joint can tell them apart.
Both hands numb or clumsy
Same day: both hands numb or clumsy (dropping things, trouble with buttons or handwriting), especially with unsteady walking or falls. Pressure on the spinal cord in the neck can do this, and it is often first mistaken for carpal tunnel syndrome.
Sudden weakness on one side
Call 999, even if it passes: sudden weakness or numbness in one arm, with a drooping face or slurred speech. These are signs of a stroke.
A young gymnast's wrist
An ache on the back or thumb side of the wrist, just above the crease, in a growing gymnast (or cheerleader or diver) that builds with training and may still hurt the next day: possibly gymnast's wrist, a stress injury of the growth plate. Stop weight-bearing on the hands and get it checked: it needs weeks to months off hand loading, not a few days.
A pop at the elbow
A sudden pop at the front of the elbow during a heavy pull, with bruising, a gap at the front of the elbow or a bulge in the upper arm, can be a torn biceps tendon. Go to an urgent treatment centre or A&E (in the US, urgent care or the emergency department), and don't wait for it to settle: repair is best done within the first 2 to 3 weeks.
See a GP
Not improved after 2 weeks of looking after it at home, getting worse, keeps coming back, or stopping you doing normal activities. In many areas you can refer yourself to NHS physiotherapy.
Any tingling or loss of feeling in the hand or wrist.
Carpal tunnel symptoms that are getting worse, not going away, or not helped by treatment at home; sooner if the thumb is weak or the muscle at the base of the thumb looks thinner.
You have diabetes and a hand problem: the NHS says hand problems can be more serious if you have diabetes.
You're over 50 and have broken your wrist: ask about a fracture liaison service to check your bone health.
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Stop and get medical help
If you get chest pain or pressure, feel faint or dizzy, are unusually breathless, or your heart races or beats irregularly during exercise, as our plans advise.
Call 999 (911 in the US)
For chest pain that comes on suddenly and doesn't go away, feels tight or like squeezing, spreads to your arms, neck, jaw, stomach or back, or comes with sweating, feeling sick, light-headedness or breathlessness; severe difficulty breathing; someone who faints while exercising; palpitations that don't go away, or come with chest pain, shortness of breath or feeling faint; or a headache that starts suddenly and is extremely painful, especially while lifting or straining, or comes with numbness or weakness, difficulty speaking or loss of vision. The NHS says a bleed on the brain may be more likely when lifting something heavy. Don't drive yourself to A&E.
Ask for an urgent GP appointment or call NHS 111
Ask for an urgent GP appointment or get help from NHS 111 for a headache that's triggered or made worse by coughing, sneezing, bending down or exercising. In the US, contact your doctor or urgent care.
During any session
Stop straight away if you feel any pain or become unwell, the NHS says, and contact 111 if your symptoms worry you or don't go away.
A dull ache in your muscles for a day or two after something new is normal. Joint pain that's sharp, gets worse during a set or lingers into the next day means switching to the easier option, and seeing a GP or physiotherapist if it carries on (our plans' rule). Our muscle soreness guide has more.
Don't rest the hand completely for long, either: for repetitive strain, the NHS says resting for more than a few days makes the area weaker and less flexible. If a joint becomes hot, red and swollen, stop and get it checked.
Check first
Speak to your GP first if you haven't exercised for some time or have medical conditions or concerns, as the NHS advises. Get advice before heavy lifting or hard straining work if your blood pressure is uncontrolled, or you have heart disease or chest pain when you're active, a pacemaker or defibrillator, diabetic eye disease, glaucoma, a hernia, recent eye or tummy surgery, or you're pregnant, as our breathing guide lists. After a recent shoulder dislocation or shoulder surgery, follow our shoulder dislocation guide or your surgical team first.
After heart surgery through the breastbone, or a heart or lung transplant, follow your surgeon's advice before pushing, pulling or lifting with your arms.
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