A muscle spasm is a sudden, involuntary muscle contraction that can feel like a cramp, twitch, or tight knot. It often happens without warning and can range from mildly uncomfortable to sharply painful. Common triggers include dehydration, muscle fatigue, nerve irritation, or electrolyte imbalances—particularly low levels of potassium, calcium, or magnesium. Spasms can last anywhere from a few seconds to several minutes. While they’re usually harmless, they can be painful and temporarily limit m
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@medicalstudent.io on Instagram: "A real muscle spasm often looks like a sudden, involuntary tightening under the skin, creating a visible ripple or twitch that can catch someone off guard. The muscle may bunch up or appear to knot, sometimes forming a small hard lump that briefly distorts the surrounding area. It can happen in the calf, back, neck, or even smaller muscles, and the movement is usually abrupt, sharp, and difficult to control. During a stronger spasm, the affected muscle can pull
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