Walking can appear cramp-like pain, this situation is mainly due to two reasons: the first case is due to excessive walking, long distance, resulting in the calf muscle position to appear obviously too much force, the fatigue of muscle tissue. After a long period of time, it will produce strain, there is inflammation as well as the gradual accumulation of metabolic products, after the stimulation of muscle tissue, it will easily lead to muscle tissue showing reflex muscle tension. In addition, it is often accompanied by cold, especially walking in shorts too much, it will lead to the calf area skin exposure time too long, easy to appear cold. If the cold causes the blood circulation to slow down further, the inflammation builds up and the muscle tissue becomes more tense, triggering cramp-like pain in the leg when the muscle is strained. The second condition is due to the possibility of hypocalcemia, and it is best to go to the hospital for a blood test, which is due to low calcium ions followed by reduced inhibition of sodium ions, excessive abnormal muscle tissue activity, and leg cramp-like pain symptoms.