👉 Excretion refers to the natural elimination of waste products from the body, which is a normal process that occurs throughout the human lifespan. It involves the movement of urine or feces out of the body through the anus, through the rectum, and eventually through the skin into the external environment. In the context of medicine, excretion can refer to the physical act of removing waste products from the body, such as stool (urine) or feces. It is also a part of the biological
