We all know that exercise is good for you—but in rare cases, pushing your body too hard can actually be dangerous. One condition that athletes should be aware of is rhabdomyolysis, often called “rhabdo.”
Rhabdomyolysis happens when muscle tissue breaks down rapidly, releasing a protein called myoglobin into the bloodstream. In large amounts, myoglobin can damage the kidneys and lead to serious health complications, including kidney failure.
For athletes, rhabdo can be triggered by intense or excessive workouts, especially after a break from training. High-heat environments, dehydration, and extreme exertion without adequate recovery are all contributing factors. Even well-conditioned athletes aren’t immune—especially if they take on a new or overly intense routine too quickly.
Common symptoms of rhabdo include severe muscle pain, weakness, swelling, and unusually dark-colored urine—sometimes described as “cola-colored.” Nausea, confusion, and fatigue may also occur. If these symptoms appear after a workout, it’s important to seek medical attention immediately. Left untreated, rhabdo can cause serious, lasting harm.
Fortunately, rhabdo is preventable. Hydration, gradual increases in workout intensity, and listening to your body can all reduce your risk. Avoid pushing through extreme pain, and don’t ignore swelling or weakness that feels unusual. Be especially cautious with high-intensity group workouts or competitive challenges when your body isn’t prepared.
While rhabdomyolysis is rare, awareness is key. Exercise should build you up—not break you down. Knowing the signs and respecting your limits will keep you safe and allow you to enjoy your entire sport season.