Flat feet, also known as pes planus, is a condition where the arches of the feet are lower than normal or completely absent. This means that when a person stands, the entire sole of the foot may touch the ground. Flat feet can be present from birth or develop over time due to factors like aging, injury, or certain medical conditions. While many people with flat feet experience no discomfort, some may have pain in the feet, ankles, or legs. Treatment options include supportive footwear, orthotic inserts, and exercises to strengthen the foot muscles. In more severe cases, a doctor may recommend surgery.