Warning signs: when to stop and get help
These follow our weightlifting, pain when lifting, neck, hand, elbow, knee, foot, hamstring and mobility guides word for word. This is general information, not a diagnosis. A&E means accident and emergency; in the US, call 911 where this page says 999.
Fainting or chest pain: call 999
Call 999 if someone faints while exercising, or has chest pain that doesn't go away, spreads to the arms, neck, jaw, stomach or back, or comes with sweating, feeling sick, light-headedness or breathlessness.
Sources 46, 47
A shoulder that slips
Call 999 or go to A&E: after a fall or injury, or after the bar came down on you or the shoulder slipped during a press, your shoulder looks out of place or has changed shape, or you cannot move your arm. Do not drive yourself, and do not try to put it back in yourself.
See a doctor or physiotherapist if your shoulder has partly or fully come out of joint, or you worry it might, including a clunk or a feeling it will slip with the arm low and back at the bottom of a press.
If a shoulder feels as if it slips during circles or hangs, leave out end-range shoulder work and see a physiotherapist. Our shoulder dislocation guide has the strengthening plan.
Numbness, tingling or weakness in an arm
Same day (urgent GP appointment or NHS 111): severe neck pain that starts suddenly or gets worse quickly; heaviness or weakness in the arms or legs; pins and needles in an arm along with neck or arm pain; or pain between the shoulder blades.
Same day: clumsiness in your hands, or numbness, pins and needles or weakness in one or both arms, that is getting worse; problems with balance or walking since the neck pain started; or neck pain with a severe headache.
Same day: you have lost the feeling in part or all of your hand.
Numbness, tingling or weakness in a leg
Call 999 or go to A&E: loss of feeling or numbness around the genitals or bottom, new trouble peeing or controlling your bladder or bowels, changes in genital sensation during sex or problems with erections or orgasm, or pain, tingling, weakness or numbness in both legs. These are signs of cauda equina syndrome, which needs treating in hospital urgently. Don't drive yourself.
Same day: leg weakness that is getting worse.
Same day (urgent GP appointment or NHS 111): new difficulty lifting the front of your foot or toes (foot drop), or a foot that slaps down or catches as you walk, especially if it is getting worse. Weakness in both legs, or with numbness around the genitals or bottom or bladder or bowel changes, is the 999 emergency above.
Pain, tingling or numbness spreading below the knee that isn't settling after a few weeks, is getting worse or stops your normal activities: see a GP.
A pop or tearing feeling
Each tendon's own guide gives its own advice:
- Same day (NHS 111 or an urgent treatment centre): a pop or tearing at the front of the armpit or chest during a lift, a dip or a tackle, followed by bruising into the chest or upper arm, a change in the shape of the chest or armpit (a thinner or lost armpit fold, or a chest or nipple that looks uneven), or weakness pushing. Don't wait for it to settle: it can be a torn pec tendon, and repairs done within about 6 weeks did better than later ones.
- Urgent treatment centre or A&E: a pop or snap and sudden pain during an effort, which could be a torn tendon. At the front of the elbow, with bruising and a bulge in the upper arm, don't wait for it to settle: a torn biceps tendon is best repaired within the first 2 to 3 weeks. If it happened weeks ago, still get it checked: repair is often still possible, though it may need a tendon graft.
- Same day: a pop or tearing feeling at the front of the knee after a fall, stumble, jump or landing, then you can't straighten the knee or lift the straight leg off the bed, there's a dent above or below the kneecap, or the kneecap sits higher or lower than on the other side. Go to A&E or an urgent treatment centre, or get help from NHS 111. A torn quadriceps or patellar tendon does best when it's repaired soon.
- Same day: a sudden snap or pop at the back of the heel or calf, or a feeling of being kicked there, then walking flat-footed and being unable to push off, stand on tiptoe or climb stairs. It could be an Achilles tendon rupture or a broken heel bone. Go to A&E or a minor injuries unit, or contact NHS 111.
- Stop if you feel a sudden sharp pain, a snap or a pop at the back of the thigh during a stretch: it may be a hamstring strain. Get help from NHS 111 if it's very painful or getting worse, there's a lot of swelling or bruising, it hurts to walk or stand on the leg, or the leg feels very stiff. Our hamstring strain guide has more.
Very flexible joints
If you're hypermobile, don't use mobility work to push further: the NHS says "do not overextend your joints just because you can". See a GP if you think you have joint hypermobility syndrome: for example, your joints keep dislocating, or you keep getting sprains, strains, pain or stiffness.
Source 39
A pinch at the end of your range
A pinch at the front of the hip or ankle is the joint, not a stretch: stay just short of it, and see a GP or physiotherapist if it keeps happening (our suggestion).
Stop and swap
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.