Q What causes bags underneath your eyes?
The bags underneath the eyes are caused by fluid buildup around the eyes, known as periorbital edema. There are many physiological and pathological causes for the swelling around the eyes. The physiological causes are- disturbed sleep, excess in salt intake in the diet, crying, age of the person etc. The pathological causes include- any infection, allergic condition, some skin disorders, kidney disorder, hypothyroidism etc.