Rhabdomyolysis in older adults: signs and urgent steps

Muscle cells can break down after a person remains on the floor following a fall, experiences a crush injury, becomes overheated, or has severe exertion or infection. Some medicines and interactions may also contribute. Released muscle contents can burden the kidneys and disturb fluid or mineral balance. An older person may not report pain clearly, particularly with memory problems, reduced mobility, or an existing condition. New weakness, difficulty standing, muscle swelling, confusion, or dark urine may be more revealing than soreness.

Ordinary post-exercise soreness generally follows a familiar activity pattern. Guidance on distinguishing it from more concerning changes is available in [Muscle Soreness After Exercise](/symptoms/muscle-soreness-after-exercise/).

Seek prompt medical advice and do not leave a weak, confused, or recently fallen person alone. Note how long they were immobile, whether there was heat or injury, current medicines, fluid intake, and changes in urination. Help them rest safely; avoid unassisted walking if balance is poor. Fluids should follow clinician guidance, especially when heart or kidney disease is present. Evaluation may involve blood and urine tests, a medication review, monitoring urine output, and treatment selected for the person's overall health.

Call emergency services for confusion, fainting, severe weakness, breathing difficulty, chest symptoms, repeated vomiting, very little or no urine, or tea-coloured urine. Urgent assessment is warranted after a fall with prolonged time on the floor, even when pain seems modest. A sudden decline in mobility or alertness should not be explained away as ageing or fatigue.

Ask whether any medicines should be changed, how fluid intake should be balanced with heart or kidney conditions, which test results need repeating, and what level of walking is safe. Ask how to reduce fall and heat risks and which changes in urine, strength, or alertness should prompt immediate reassessment.