Swollen calves in the afternoon may be due to varicose veins in the lower extremities, which are a very common condition that occurs in people who work long hours on their feet or in manual labor. Because varicose veins can cause increased pressure in the veins of the lower extremities, the veins of the lower extremities become bruised and dilated, and patients with varicose veins often experience soreness and swelling in the lower extremities, as well as a dull pain. Patients may also experience skin pigmentation and itching in the lower extremities. In addition, if the patient stands for a long time, he or she may experience swelling and pain in the lower limbs. In this case, you need to go to the hospital to check the lower limb vascular ultrasound. If the varicose veins of lower limbs are clearly identified, surgical treatment is needed, through which the symptoms can be relieved.