Generally, high fever does not cause redness, swelling and pain in the calves, but the common causes of redness, swelling and pain in the calves are thrombophlebitis, lymphangitis and muscle injury.
1. Thrombophlebitis: blood clots appear in the veins caused by damage to the walls of the veins and varicose veins, resulting in an inflammatory reaction in the veins and causing redness, swelling and pain in the calves.
2. Lymphangitis: pathogens enter the lymphatic vessels through the lymphatic gap of tissues through skin and mucous membrane fissures, surgical incisions, etc., resulting in inflammatory reaction.
3. Muscle injury: Calf due to trauma, causing bone or soft tissue damage, redness, swelling and pain in the calf.
Redness, swelling and pain in the calf may be caused by other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and standardized treatment under the guidance of the doctor.