https://www.mayoclinic.org/diseases-conditions/muscle-cramp/symptoms-causes/syc-20350820

Jan 3, 2019 ... Most muscle cramps develop in the leg muscles, particularly in the calf. Besides the sudden, sharp pain, you might also feel or see a hard lump ...

https://www.nhsinform.scot/illnesses-and-conditions/muscle-bone-and-joints/conditions/leg-cramps

Leg cramps are a common and usually harmless condition where the muscles in your leg suddenly become tight and painful. It usually occurs in the calf muscles ...

https://my.clevelandclinic.org/health/diseases/14170-leg-cramps-at-night

Nocturnal (night) leg cramps are cramps that happen commonly during the night while you are sleeping. The contractions, most often in the calf muscles but also ...

https://www.pharmacytimes.com/publications/issue/2017/july2017/leg-cramps-a-sign-of-underlying-illness

Aug 1, 2017 ... Leg cramps are characterized by sudden, severe, and involuntary muscle contractions.1 Leg cramps commonly affect the calf muscles but may ...

https://www.webmd.com/pain-management/muscle-spasms-cramps-charley-horse

Mar 31, 2019 ... You could be out for a run or drifting off to sleep when it happens: The muscles of your calf or foot suddenly become hard, tight, and painful.

https://www.health.harvard.edu/staying-healthy/take-that-muscle-cramps

Oct 1, 2018 ... Statin drugs, on the other hand, can cause constant muscle aches, but ... Alternatively, for cramps in the front of the lower leg, just stand up at ...

https://www.medicalnewstoday.com/articles/180160.php

Dec 1, 2017 ... Leg cramps, or charley horses, are a common problem that affect the feet, calves, and thigh muscles. They involve sudden, painful involuntary ...

https://www.medicinenet.com/muscle_cramps/article.htm

Get information on muscle cramps (charley horses), including leg cramps, causes (vitamin deficiency, drugs, ... A runner experiences a muscle cramp in his calf.

https://www.merckmanuals.com/professional/neurologic-disorders/symptoms-of-neurologic-disorders/muscle-cramps

Muscle Cramps - Etiology, pathophysiology, symptoms, signs, diagnosis ... Leg cramps at night usually occur in the calf and cause plantar flexion of the foot and  ...

https://www.health.com/pain/leg-cramps-causes

Feb 8, 2019 ... A leg cramp is a sharp, sudden contraction or tightening of the muscle in the calf, which usually lasts a few seconds to a few minutes. If a cramp ...