Soreness and swelling pain in the lower leg belly should be timely medical care, after the doctor asked about the symptoms and physical examination of double lower extremity vascular ultrasound, lumbar spine MRI, cervical spine MRI, lower extremity soft tissue ultrasound and other clear conditions. 1. Double lower extremity vascular ultrasound: If there is venous thrombosis or vascular stenosis, occlusion, varicose veins of lower extremity and other abnormal changes, which can lead to soreness and pain in lower extremity, you can do double lower extremity vascular ultrasound to make a clear diagnosis. 2. MRI of lumbar spine: If there is lumbar disc herniation or lumbar spinal stenosis and other compression of nerves in lumbar spine, it will cause lower extremity radiating soreness, swelling and pain, and at this time, we can do lumbar MRI to make clear whether lumbar spine has lesions. 3. MRI of cervical spine: if there is cervical spondylosis, cervical spinal stenosis compression of the nerves, spinal cord can also cause lower extremity calf soreness, swelling and pain in the lower extremities, often accompanied by neck discomfort, at this time, you can do MRI of cervical spine to clarify whether there is a lesion. 4. Lower extremity muscle soft tissue ultrasound: if there are traumatic injuries or severe pain during exercise, there may be Achilles tendon or gastrocnemius muscle injury or even rupture, you can consider taking the lower extremity muscle soft tissue ultrasound to check the subcutaneous and muscular tissue damage. All of the above tests can be used as a definitive diagnosis of calf belly pain, please go to the hospital in time to do the relevant tests to clarify the diagnosis, the cause of the treatment to alleviate the symptoms, so as not to delay the condition.