Heat cramps: Painful muscle spasms in the abdomen, arms, or legs following strenuous activity. The skin is usually moist and cool and the pulse is normal or slightly raised. Body temperature is mostly normal. Heat cramps often are caused by a lack of salt in the body, but salt replacement should not be considered without advice from a physician. Heat cramps usually affect people who sweat a lot during strenuous activity. The sweating depletes the body's salt and moisture. The low salt level in the muscles causes painful cramps. Heat cramps may also be a symptom of heat exhaustion.
If you have heart problems or are on a low sodium diet, get medical attention for heat cramps. If medical attention is not necessary, take these steps:
Heat cramps are painful, brief muscle cramps that occur during exercise or work in a hot environment. Heat cramp symptoms include painful, involuntary, intermittent, or ...
Heat cramps can occur during exercise or work in a hot environment or begin a few hours later.
How to recognize and provide first-aid treatment for heat cramps.
Learn about heat cramps, muscle spasms in the abdomen, arms or legs that occur in association exercising or working in a hot humid environment. Heat cramps are a heat ...
Heat cramps, heat exhaustion, and heat stroke: what they are, how to avoid them, and what to do about them.