Swelling of the foot bone generally refers to the swelling of the ankle. Swelling of the foot bone without pain is mostly related to factors such as prolonged standing, lower limb venous return obstacle, kidney disease and heart disease.
1. Long-term standing: after standing for a long time, the pressure of veins in the lower limbs is high, which can’t return, leading to the expansion of superficial veins, thus causing the swelling of the lower limbs and ankles.
2. Lower extremity venous return obstruction: If varicose veins or venous thrombosis occur in the lower extremity, resulting in obstruction of venous return channels, the venous blood overflows into the tissue space resulting in edema of the lower extremity and ankle, but the pain symptoms are not obvious.
3. Kidney disease: Due to kidney problems, the albumin in the blood decreases and the colloid osmotic pressure of the blood decreases, which leads to the overflow of blood into the blood vessels, and then edema of the lower limbs and ankles occurs.
4. Heart disease: If there is a heart disease such as heart failure, it will cause blood retention in the lower limbs due to the insufficient power of returning blood to the heart, resulting in the phenomenon of swollen foot bones but no pain.
There are many other causes of swollen feet without pain, including diabetes complications and venous thrombosis and other diseases, please consult a doctor in time to clarify the cause of the disease before treatment.