Seizures are unintended, attacks of muscle contraction as a result of their very strong stress. A large number of seizures are extremely painful. Usually by the time they are not too long, but tend to be repeated at frequent intervals. Severe leg cramps may be observed in both young and elderly.

It should be noted that the seizures occur at night, in heat, when a person sleeps. Such conditions contribute to rapid and intense shortening of muscles. In very rare cases, muscle cramps are caused by muscle activity. Convulsions may also occur when fatigue, when for a long time load are the same muscle groups. Such types of seizures occur in those people whose work takes place in a standing position.

Cramp calf muscles can be termed as an independent disease, and a sign of another illness. Severe leg cramps are very often a symptom of varicose veins. That’s when varicose veins are cramping calf muscles.

Muscle spasms as the main feature of varicose veins are very rarely observed in isolation. Mostly, they occur in combination with other symptoms like decreased venous outflow in the feet which results in leg cramps, swelling etc.

Common causes of convulsions in the muscles of the calf, physicians represent an imbalance of calcium, potassium and sodium in muscle tissue, which begins to develop due to stagnation of blood in the veins. Lack of calcium ions in the tissues of the legs provokes an increase in neuro-muscular excitability. Initially revealed as muscle weakness or severe fatigue legs can, over a time, transform into muscle tremors, leg cramps.