Right leg stomach may be caused by strenuous exercise, trauma, lumbar spine disease, lower extremity deep vein thrombosis and other reasons. 1. Strenuous exercise: a lot of labor or strenuous exercise, such as long-distance running, mountaineering, etc., can cause the muscles to produce a lot of lactic acid and other acidic products, not fully metabolized acidic products accumulated in the muscle tissues, which can cause muscle pain symptoms. 2. Trauma: due to violence and other traumatic injuries can lead to soft tissue injury, or even local hematoma, causing pain and swelling of the right leg stomach. 3. Lumbar spine disease: Lumbar spine disease such as lumbar disc herniation, spinal stenosis, spinal tumor, etc., the nerve root is compressed, which can cause pain and numbness in the stomach of the right leg. 4. Lower extremity deep vein thrombosis: severe trauma, long-term bedridden and malignant tumor patients, due to slow blood flow, endothelial damage, blood hypercoagulable state leads to thrombus formation in the veins of the lower extremities, causing symptoms such as swelling, pressure and pain, fever and other symptoms of the affected limbs. There are many causes of right leg stomach pain, it is recommended to seek timely medical treatment, targeted treatment under the guidance of the doctor.