What should you know about non traumatic rhabdomyolysis?

When muscle cells break down, their contents enter the bloodstream. The kidneys must process these substances, so rhabdomyolysis can disturb kidney function and body-fluid or mineral balance. Causes without a direct blow include unusually intense exercise, heat exposure, seizures, prolonged immobility, some medicines, and metabolic or muscle disorders.

Possible clues include marked muscle pain, weakness, swelling, reduced urine, or urine that looks unusually dark. Symptoms can be subtle, so a blood test for muscle injury and checks of kidney function may be needed.

Stop strenuous exercise and seek medical advice rather than trying to train through severe soreness or weakness. A clinician may recommend fluids, repeat blood tests, observation, and treatment of the trigger. Do not self-treat with large amounts of fluid or medicines without guidance, particularly if you have kidney or heart conditions.

Until assessed, avoid alcohol, further intense exercise, and unapproved supplements. Tell the clinician about recent exertion, heat, illness, seizures, medicines, and any change in urine.

Seek urgent medical care for severe muscle weakness or swelling, dark or very reduced urine, confusion, fainting, breathing difficulty, or inability to keep fluids down. Prompt assessment is also sensible when muscle symptoms are far stronger or longer-lasting than expected after activity.

Ask whether you need blood and urine testing, how activity should be restarted, which medicines or supplements to avoid, and whether an underlying muscle or metabolic problem needs review.