There are more reasons for right leg soreness, the common ones are cold, trauma, vascular disease, lumbar spine lesion, joint lesion and so on. 1. Cold: due to cold wind stimulation or prolonged exposure to low temperature, the blood circulation in the leg is obstructed resulting in soreness. 2. Trauma: mostly refers to impact, pressure injury, etc., which manifests as leg soreness, greenish-purple ecchymosis under the skin, etc. 3. Vascular diseases: including deep vein thrombosis and varicose veins of the lower limbs, etc., which cause pain, swelling and subcutaneous blood vessel protrusion due to poor blood circulation in the legs. 4. Lumbar spine lesions: common ones include lumbar disc herniation, pyriformis syndrome, lumbar spondylolisthesis, etc., which cause right leg pain, lumbar pain and limitation of lower limb activities due to compression or stimulation of sciatic nerve. 5. Joint lesions: such as osteoarthritis, rheumatoid arthritis, meniscus injury, etc., due to the accumulation of inflammatory factors to stimulate the right leg, resulting in soreness, swelling, skin temperature, etc.. In addition, osteoporosis, pelvic inflammatory disease and calcium deficiency can also cause right leg pain. If the symptoms of right leg pain do not improve, it is recommended to consult a doctor in time and standardize the treatment under the guidance of the doctor.