The original source also recommends evaluation when cramps are frequent or accompanied by significant swelling, redness, weakness, numbness, or severe pain.
Anatomy
## A Swollen, Red, Painful Leg Is Different
A simple muscle cramp usually improves when the muscle relaxes.
A leg that remains **swollen, warm, red, or painful**, particularly when only one leg is affected, should not automatically be dismissed as a cramp.
These symptoms can have several causes and sometimes require urgent evaluation.
If leg swelling or pain occurs together with **sudden shortness of breath, chest pain, coughing up blood, fainting, or severe breathing difficulty**, seek emergency medical help.
## Do Night Cramps Mean You Have Poor Circulation?
Not necessarily.
