The cause of leg and stomach pain in the elderly may be varicose veins of the lower limbs, arterial occlusion of the lower limbs, etc. 1. Lower extremity varicose veins: the lower extremity venous valve insufficiency leads to the obstruction of venous blood flow, the skin of the lower extremity appears to protrude from the epidermis in the form of earthworm-like walking shallow veins, often manifested as pain in the lower extremities, but also swelling of the lower extremities, hyperpigmentation and so on. 2. Lower extremity arterial occlusion: lower extremity arterial occlusion refers to the lower extremity arterial blood flow is not smooth or blocked, mostly in the elderly, the patient in addition to pain in the legs and stomach, but also intermittent claudication, severe rest pain, walking obstacles, and even necrosis of lower extremity end tissues. Elderly leg and stomach pain may also be caused by other reasons, it is recommended to improve the relevant examination as soon as possible under the guidance of a physician to clarify the cause of the disease and then give targeted treatment.