6. Anal fistulas
An anal fistula is an extremely small channel that forms between the anal canal and the skin surrounding the anus, causing a small, open wound that causes pain when passing stool. This fistula can also cause bleeding every time you pass stool and cause pain throughout the day.
As well as blood in your stool, the area surrounding the anus may also experience redness and pain, and in some cases, there may be a discharge of pus.
Gastroenteritis is a common infection caused by bacteria or viruses which affect the stomach and the colon. These infections can cause diarrhea that includes mucous in stool, as well as blood. You’ll know if you have this condition by looking at your stool, and examining your other symptoms.
For instance, those suffering from gastroenteritis will also experience a high temperature, vomiting, headaches and cramps in their stomach. Many people who experience these infections don’t even have time to see their doctor, either, given that they tend to clear up quite quickly. If you find it is an ongoing problem, however, be sure to speak to your doctor urgently.