Muscle Spasms (Muscle Cramps)
sudden, painful, involuntary muscle contractions
most commonly occurs in the skeletal muscles
often caused by muscle fatigue, dehydration, low electrolyte levels, or poor circulation
gentle pressure and stretching can be used to relieve the spasm
smooth muscles can go into spasm
examples include the pain associated with menstrual cramps, diarrhea, gallbladder pain, and passing a kidney stone