Muscle spasms frequently occur due to the overuse of muscles through repetitive exercise or physical activity or as a result of dehydration, according to MedicineNet. Muscle spasms can also result from medical conditions... More »

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The causes of muscle spasms in the rib cage include injuries to the chest, rib fracture, inflamed rib cartilage, diseases such as osteoporosis and inflamed lining of the lungs as reported by Healthline. Symptoms of muscl... More »

Symptoms of muscle diseases include abdominal pain, muscle pain and stiffness, involuntary jerky movements, rapid heart rate and difficulty getting up. Examples of muscle diseases include rhabdomyolysis, muscular dystrop... More »

Some cause of muscle spasms are overuse or exercise of muscles on the left side, dehydration and atherosclerosis, according to MedicineNet. Nervous system disorders such as amyotrophic lateral sclerosis, multiple scleros... More »

The actual cause cramps in the legs and feet is not known, but it may be caused by conditions or activities such as overuse of muscles, dehydration, nerve compression, mineral deficiency and cold weather, according to Ma... More »

Deep muscle pain in the buttocks could be piriformis syndrome or sciatica, or could simply be a muscle spasm from exercise, states WebMD. Piriformis syndrome is a condition in which the piriformis muscle (a thin muscle l... More »

Although exercise and overuse of the muscles often causes soreness, other infections and disorders can also cause soreness, states MedlinePlus. Some other causes of muscle soreness include influenza, lupus or fibromyalgi... More »

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