Soreness on the outer side of the calf needs to be treated according to the cause, common causes include overwork, trauma, lumbar disc herniation, etc., which can generally be treated through more rest, physical therapy, medication, surgery and other methods. Overexertion can also cause soreness on the outside of the calf, which can be treated by resting, applying ointment to invigorate blood circulation and remove blood stasis, such as Yunnan Baiyao ointment, and also through massage and tuina. Trauma-induced lateral calf pain can be treated with medication, such as ibuprofen, and infrared radiation. In the case of lumbar disc herniation, the protruding nucleus pulposus will compress the dural sac and stimulate the nerve root, which will cause lower limb symptoms, such as soreness on the outer side of the calf, and may be accompanied by symptoms such as calf weakness and numbness. It can be treated by medication, such as diclofenac sodium extended-release tablets, and in severe cases, it can be treated by surgery to release the compression. It is recommended that this symptom should go to the hospital in time to improve the relevant examination, and then targeted treatment, do not self-medication.