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Rectal bleeding refers to bleeding in the rectum, thus a form of lower gastrointestinal bleeding. There are many causes of rectal hemorrhage, including inflamed hemorrhoids (which are dilated vessels in the perianal fat pads), rectal varices , proctitis (of various causes), stercoral ulcers , and infections .
Typical symptoms can include abdominal pain, abdominal distention, abdominal cramping, nausea, vomiting, fever, rectal bleeding, and possible bowel perforation. [2] Patients that develop bowel perforation may present in an acute state with severe abdominal pain and signs of perforation, such as abdominal distention, guarding and rigidity , and ...
Blood in stool looks different depending on how early it enters the digestive tract—and thus how much digestive action it has been exposed to—and how much there is. The term can refer either to melena, with a black appearance, typically originating from upper gastrointestinal bleeding; or to hematochezia, with a red color, typically originating from lower gastrointestinal bleeding. [6]
Gastrointestinal bleeding (GI bleed), also called gastrointestinal hemorrhage (GIB), is all forms of bleeding in the gastrointestinal tract, from the mouth to the rectum. [9] When there is significant blood loss over a short time, symptoms may include vomiting red blood, vomiting black blood, bloody stool, or black stool. [1]
The symptoms of a perianal hematoma can present over a short period of time. Pain, varying from mild to severe, [ 3 ] will occur as the skin surrounding the rupture expands due to pressure. This pain will usually last even after the blood has clotted, and may continue for two to four days.
Colorectal cancer (CRC), also known as bowel cancer, colon cancer, or rectal cancer, is the development of cancer from the colon or rectum (parts of the large intestine). [5] Signs and symptoms may include blood in the stool , a change in bowel movements , weight loss, abdominal pain and fatigue. [ 9 ]
Symptoms of ischemic colitis vary depending on the severity of the ischemia. The most common early signs of ischemic colitis include abdominal pain (often left-sided), with mild to moderate amounts of rectal bleeding. [11] The sensitivity of findings among 73 patients were: [12] abdominal pain (78%) lower gastrointestinal tract bleeding (62%)
The signs and symptoms of hemorrhoids depend on the type present. [4] Internal hemorrhoids often result in painless, bright red rectal bleeding when defecating. [3] [4] External hemorrhoids often result in pain and swelling in the area of the anus. [4] If bleeding occurs, it is usually darker. [4] Symptoms frequently get better after a few days ...