The main clinical symptoms of Parkinson’s disease are slow movement, limb stiffness, tremor and abnormal posture and gait. Parkinson’s disease itself does not directly cause leg cramps, but due to the following reasons, it may also induce leg cramps, specifically as follows: 1. Parkinson’s disease is a kind of disease mostly seen in the middle-aged and elderly people, and the elderly are more likely to have low calcium, calcium deficiency or osteoporosis, and calcium deficiency will cause leg cramps. 2; 2.Cold stimulation can cause cramps, such as in swimming, if you suddenly go into the water without doing some warm-up exercises, it will cause leg cramps. So the elderly in the cold stimulation, easy to the muscular system, and cause abnormal muscle contraction, resulting in leg cramps; 3, the vascular function is not good, especially the lower limb vascular occlusion or lower limb vascular blood supply is not good easy to cramp, such as the elderly tend to have atherosclerosis, so in the process of walking there will be a leg cramp; 4, part of the cramp due to the exertion of induced by the, that is, and Muscle fatigue has a relationship, especially the elderly, after walking more during the day, at night began to leg cramps; 5, Parkinson’s patients have some manifestations similar to leg cramps, such as increased muscle tone and tremor, will be mistaken for leg cramps, in fact, there is a difference between the two.