Soreness in both calves is mostly considered clinically related to cold, exertion and poor blood circulation. Excessive muscle exertion can lead to excessive localized lactic acid buildup, causing muscle soreness in both calves, and localized exposure to cold can also lead to muscle contraction and muscle soreness. Soreness can also occur when poor venous return leads to venous stasis and blood accumulation in the lower extremities. Herniated lumbar discs that press on the nerves can also lead to soreness in both calves at the same time, but this is a rare situation in the clinic. Prolonged standing work can also lead to decreased blood circulation in the lower limbs, resulting in soreness in both calves. There are also mineral deficiencies in the body that can cause muscle twitching and spasms in the lower limbs, damaging muscle fibers and thus causing muscle soreness, such as calcium deficiency. In addition, high blood pressure, diabetes, myasthenia gravis can also be accompanied by soreness, cold symptoms.