A knee injury
Go to A&E (accident and emergency) if you've injured your knee and it has changed shape, it becomes very swollen very quickly, you felt a pop or snap, you can see bone sticking out, or it's bleeding heavily. Don't drive yourself: ask someone to take you, or call 999 if the pain means you can't move your leg to get there.
Get advice from NHS 111 now: you cannot move the knee or put any weight on it, or it is very painful, badly swollen or has changed shape, or it locks, gives way or clicks painfully. A pop, quick swelling and a knee that gives way point to an ACL injury: our ACL injury guide says what to do.
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A sprain or a crack
Call 999 or go to A&E if you heard a crack, the joint has changed shape or points at an odd angle, it's numb or tingling, or the skin has turned blue or grey or is cold. Get help from NHS 111 or an urgent treatment centre if you can't put any weight on it or walk more than a few steps.
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A wrist or arm after a fall
Call 999 or go to A&E (accident and emergency) if you heard a crack, the injured part has changed shape or points at an odd angle, it's numb or tingling, or the skin has turned blue or grey or is cold. Get help from NHS 111 if it's very painful or very swollen or you can't use it normally. Our wrist sprain guide explains why pain at the base of the thumb after a fall needs checking the same day; the scaphoid fracture guide covers the break itself.
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Skier's thumb
Same day (NHS 111, an urgent treatment centre or an urgent GP appointment): a thumb injury that is very painful, swollen and bruised, stiff or difficult to move. It may be broken, dislocated or a torn ligament, and you'll probably need an X-ray.
Within days: after the thumb was bent back or away from the hand, pain and swelling at the base of the thumb on the index-finger side, especially with a weak or painful pinch, a loose or wobbly feeling, or a lump there. Ask to be seen in a hand clinic: a complete tear needs a decision on treatment within 2 weeks of referral, and it is easily missed in A&E.
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A shoulder that looks out of place
Call 999 or go to A&E: after a fall or injury, your shoulder looks out of place or has changed shape, you cannot move your arm, or your shoulder is painful, bruised or swollen. Do not drive yourself, and do not try to put it back in yourself.
Your shoulder has partly or fully come out of joint, or you worry it might.
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A head injury
Call 999 if someone has hit their head and has been knocked out and hasn't woken up, can't stay awake or keep their eyes open, has a fit, has fallen from a height of more than 1 metre or 5 stairs, has problems with their vision or hearing, has clear fluid coming from their ears or nose, has new numbness or weakness, has problems with walking, balance, understanding, speaking or writing, hit their head at high speed, or their behaviour has changed. Get help from NHS 111 if they're being sick, feel dizzy or take medicine that thins the blood. If you're told to go to A&E (accident and emergency), don't drive yourself there if you have hit your head.
With a suspected concussion, if in doubt, sit them out. The UK's grassroots guidelines say no sport for at least 24 hours, get checked by a healthcare professional or NHS 111 within 24 hours, follow a staged return, and no competition before day 21; if symptoms last beyond 28 days, stay out of sport and see a doctor. Yoga waits too: gentle breathing fits the early, light-activity stages, and no head-down poses or inversions until you're cleared (our reading). Our concussion guide has the stages.
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Chest pain or fainting: call 999
Call 999 if:
- You get sudden pain or discomfort in your chest that doesn't go away; it can feel like squeezing or pressure, burning or indigestion.
- The pain spreads to your left or right arm, or your neck, jaw, stomach or back.
- You have chest pain and feel sweaty, sick, light-headed or short of breath.
- Someone faints while exercising, can't be woken within 1 minute, or has chest pain or a pounding, fluttering or irregular heartbeat.
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Altitude: get medical help straight away
The NHS says to get medical help immediately, and go 300 to 1,000 m lower if you can, if you or someone with you has altitude sickness and feels very unwell, is confused, has problems with balance or coordination, has hallucinations, is short of breath at rest, has a cough with frothy or bloody spit, has blue or grey skin, lips, tongue or nails, or is very sleepy or hard to wake.
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Cold: hypothermia and frostbite
Call 999 or go to A&E for signs of hypothermia, such as shivering, pale cold skin, slurred speech, slow breathing, tiredness or confusion, and for frostbite with hard, frozen skin, swelling, loss of feeling or blisters. Don't rub frostbitten skin or warm it with direct heat.
During yoga
A joint pain that is sharp, gets worse during a session, lingers into the next day or changes how you move is a reason to use an easier version, and to see a GP or physiotherapist if it keeps happening (the rule in our plans). Muscle soreness for a day or two after something new is normal. In a hot class, stop if you feel dizzy, sick or unwell; our hot yoga guide lists the signs of heat illness.
Rate your knee pain from 0 to 10 during and after exercise. In the pain-monitoring model used in knee trials, 0 to 2 counts as safe, up to 5 as acceptable and above 5 as too much. Aim for 0 to 3 most of the time.