Charley horse cramps: what they feel like and what to do

The muscle may feel hard or knotted during the episode and remain tender afterward. The term can also refer to a muscle bruise caused by a direct blow, so recent impact, swelling, or bruising changes what care is appropriate.

Cramps can follow unfamiliar exercise, muscle fatigue, prolonged positioning, heat, fluid loss, or changes in medicines. Sometimes there is no clear trigger. A cramp contracts suddenly without an external blow; a muscle contusion follows impact and is more likely to cause bruising, swelling, and pain when the area is pressed.

Repeated cramps deserve a closer look when they disrupt sleep or activity, begin after a medicine change, or occur with weakness or altered sensation.

Stop the activity and slowly lengthen the affected muscle without bouncing. Gentle walking can help a leg muscle relax. Once the tightening releases, light massage or warmth may soothe residual stiffness; avoid forceful pressure if there was a blow, visible bruising, or marked swelling.

Drink according to thirst and the conditions around you. Before returning to exercise, check that normal movement is comfortable and build intensity gradually rather than pushing through ongoing pain.

Arrange medical assessment for cramps that keep returning, last unusually long, or come with persistent swelling, weakness, numbness, skin changes, or difficulty using the limb. Seek urgent care for severe swelling, a limb that becomes cold or pale, inability to bear weight after an injury, chest pain, breathing difficulty, or sudden one-sided weakness.

Tell the clinician which muscle tightens, what you were doing beforehand, whether there was an impact, and whether bruising, swelling, weakness, or numbness followed. Bring a current medicine list and ask whether your exercise load, recovery routine, or medicines could be contributing.