Calf pain like pins and needles may be caused by physiological factors or diseases such as phlebitis and varicose veins. 1. Physiological factors: For example, if you do strenuous exercise for a long time and pull the calf muscle, it may produce a tingling sensation, like being stabbed by a needle, and the symptoms will be gradually reduced and return to normal after stopping the exercise. 2. Phlebitis: mainly due to the inflammatory reaction of superficial or deep veins, or thrombosis, manifested as tingling in the calf, or streaks, erythema. 3. Varicose veins: mainly due to stagnation of blood or weak walls of veins, mainly manifested as pain in the lower limbs, accompanied by a feeling of swelling, which may lead to lower limb edema in severe cases. In addition to the above factors, we should also consider the long-term calcium deficiency, calf fasciitis, cellulitis and other diseases. It is recommended to consult a doctor as soon as possible to clarify the cause of the disease, and then standardized treatment.