Old people foot is swollen still itch a bit what reason is caused

There are many factors that need to be considered for old people's swollen feet. It may be that sitting for a long time leads to poor blood circulation of lower limbs, so it will cause swollen feet. At the same time, when local infection occurs, it may be accompanied by itching. In addition, diabetes and kidney disease may not be ruled out. It is recommended that patients go to hospital for examination.