Leg cramps are sudden, involuntary contractions of the muscles in your legs. They can range from mild to severe, and they can last for a few seconds to several minutes. Leg cramps are often caused by dehydration, electrolyte imbalance, or muscle strain. They can also be a sign of an underlying medical condition, such as poor circulation or nerve damage.
There are a number of things you can do to avoid leg cramps, including: