Foot swelling nor swelling refers to the soreness and pain in the ankle without swelling, common causes are over-exercise, plantar fasciitis, diabetic complications. 1. Excessive exercise: due to long-distance running, hiking, standing work, etc., overwork caused by chronic strain or lactic acid buildup, there can be soreness and pain in the ankle, which is a normal phenomenon, and can be appropriate rest. 2. Plantar fasciitis: due to prolonged standing, weight-bearing, foot trauma, etc., causing damage to the fascia, resulting in aseptic inflammation, common symptoms are soreness and pain in the foot that can be aggravated after activity, difficulty in moving, etc. 3. Diabetic complications: If long-term blood sugar control is not good, causing diabetic peripheral vascular disease, atherosclerotic plaque formation in the lower limbs, can also appear in the ankle soreness and pain. Causes of ankle soreness and pain without swelling are more reasons, may also be related to lumbar disc herniation, ankle synovitis, heel bursitis, Achilles tendonitis, phalangeal osteitis and other diseases, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, and to carry out targeted treatment.