Foot swelling occurs through the following reasons:
1- Taking some medicines that cause fluid retention and thus the feet swell, such as medicines for diabetics and some medicines that treat chronic diseases such as heart and pressure
2- Exposuring to an injury to the foot such as a fracture or the trunk. If the necessary medical intervention is not taken, then it swells
3- Pregnancy and this usually occurs during pregnancy
4- The occurrence of a blood clot in the foot
5- Standing for long periods or sitting for long periods, which hinders the return of blood to the heart.