The anus is the final part of the digestive tract and the external opening through which stool is expelled from the body. Anatomically, it is located outside the body between the buttocks as a continuation of the rectum, which is the final section of the large intestine. The primary function of this region is to voluntarily control defecation and the passage of gas through specialized muscle structures called sphincters. Anal diseases are common conditions that can seriously affect quality of life. The most common of these problems include hemorrhoids, anal fissure characterized by severe pain, and anal fistula accompanied by chronic discharge.<\/p>\n
| What You Need to Know<\/td>\n | Information<\/td>\n<\/tr>\n |
| What is the anus?<\/td>\n | The anus is the final part of the digestive system. It comes after the rectum, which is the last section of the large intestine, and is the opening through which stool is expelled from the body.<\/td>\n<\/tr>\n |
| Where is the anus located?<\/td>\n | It is located in the lower part of the body, between the buttocks. On the pelvic floor, it is surrounded by muscles that allow stool and gas to be expelled in a controlled manner.<\/td>\n<\/tr>\n |
| Anatomical structure of the anus<\/td>\n | There are two main muscle structures: the internal anal sphincter, which works involuntarily, and the external anal sphincter, which is under voluntary control. These muscles provide the ability to retain stool and gas.<\/td>\n<\/tr>\n |
| Function of the anus<\/td>\n | It acts as the passage through which stool and gas are expelled. Defecation is controlled voluntarily or involuntarily through muscle and nerve coordination.<\/td>\n<\/tr>\n |
| Common anal diseases<\/td>\n | \u2022 Hemorrhoids \u2022 Anal fissure \u2022 Anal fistula \u2022 Anal abscess \u2022 Pruritus ani \u2022 Anal cancer \u2022 Infections and irritations around the anus<\/td>\n<\/tr>\n |
| Signs and complaints<\/td>\n | \u2022 Pain or burning during defecation \u2022 Anal bleeding \u2022 Swelling or a feeling of fullness \u2022 Itching, discharge, or foul odor \u2022 Fecal incontinence \u2022 A constant feeling of wetness or irritation<\/td>\n<\/tr>\n |
| Why are diseases in this region important?<\/td>\n | Patients often seek medical attention late because of embarrassment. However, some anal diseases can seriously affect quality of life and can be treated easily with early diagnosis.<\/td>\n<\/tr>\n |
| When should a doctor be consulted?<\/td>\n | In cases such as anal bleeding, persistent pain, palpable swelling, fecal incontinence, or foul-smelling discharge, a general surgeon or proctology specialist should be consulted without delay.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n |