The common clinical causes of standing leg pain without sitting are varicose veins of the lower extremities, lumbar disc herniation, and myofasciitis.
1. Varicose veins of lower limbs: valve dysfunction of superficial veins of lower limbs will cause reflux of blood in the veins, when the blood in the veins is stagnant and the venous pressure is elevated, it will lead to bulging and dilatation of the walls of the affected veins, and the clinical manifestations include soreness and swelling of the legs, heavy fatigue, muscle spasm and so on, and frequent standing will aggravate the symptoms of soreness and swelling of the legs.
2. Lumbar intervertebral disc herniation: when people with this disease are standing, the pressure of lumbar vertebrae will rise and aggravate the stimulation of intervertebral disc herniation and hyperplasia of bone spurs on the nerve root, and the symptoms of lumbago and radiating pain in the lower limbs will become obvious.
3. Myofasciitis: this disease is a common clinical aseptic inflammation, mostly seen in frequent mountain climbing, running, weight walking and other people, clinical manifestations of leg muscle soreness, pain, numbness and so on.
Standing leg pain sitting without pain may also have other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, give targeted treatment or treatment.