- Cramps (or myoclonus) is a sharp uncontrolled painful increase in muscle tone lasting from 10 seconds to 15 minutes. Most often, convulsions of the calf muscles occur. This is due to the fact that the calf muscles work a lot and at the same time are located on the periphery - far from the heart and central vessels.
The causes of spasms can be divided into two groups - some are caused by physical exertion, while others are symptoms of various systemic pathological conditions. Here is an incomplete list of pathologies that may be accompanied by this symptomatology: varicose veins, non-insulin-dependent diabetes mellitus, renal failure, imbalance of thyroid hormones, flat feet, Parkinson's disease, liver cirrhosis, various tumors, spasmophilia, multiple sclerosis, neuroinfection, encephalomyelitis and more.
So if cramping occurs more often two to three times a month and is not associated with sports activities, then you need to contact a neurologist.