Causes of dorsal swelling of the feet include ankle sprains, salpingitis, venous return obstruction, mosquito bites and so on.
1. Ankle sprains: Ankle sprains can lead to aseptic inflammatory reaction, with symptoms such as redness, swelling, heat and pain around the ankle, including swelling of the instep.
2. Dengue: Streptococcus can invade and infect the damaged skin, and then invade the lymphatic network of the skin, which ultimately leads to dengue, which can lead to headache, fever and other general discomforts, as well as localized redness, swelling and pain in the skin. After the treatment of dengue can also be due to lymphatic obstruction leading to lower limb edema, swelling of the back of the feet and other symptoms.
3. venous return obstruction: varicose veins of the lower extremities, thrombophlebitis, etc. can lead to venous return obstruction, swelling of the back of the feet and other symptoms.
4. Mosquito bites: When the instep is bitten by some mosquitoes, the local skin can have a perverse reaction due to the toxins secreted by the mosquitoes, which ultimately leads to redness and swelling of the instep.
Swelling of the back of the feet may also have other pathological factors, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.