Anal fistula
Anal fistula
GI Tract
GI Tract
Mallory-Weiss syndrome
Gastroesophageal reflux disease (GERD)
GERD, peptic ulcers, gastritis, and stomach cancer: Pathology review
Boerhaave syndrome
Esophageal cancer
Zenker diverticulum
Esophageal web
Diffuse esophageal spasm
Esophagitis: Clinical
Ulcerative colitis
Gastric cancer
Gastric motility
Pancreatic cancer
Gastritis
Zollinger-Ellison syndrome
Gastroparesis: Clinical
Gastroenteritis
Pyloric stenosis
Acute cholecystitis
Ascending cholangitis
Primary sclerosing cholangitis
Abscesses
Anal fistula
Anal fissure
Irritable bowel syndrome
Bowel obstruction
Diverticulosis and diverticulitis
Hemorrhoid
Inflammatory bowel disease: Pathology review
Inflammatory bowel disease: Clinical
Ischemic colitis
Colorectal polyps
Colorectal polyps and cancer: Pathology review
Esophageal motility
Gastroesophageal reflux disease (GERD): Clinical
Esophageal disorders: Clinical
Esophageal disorders: Pathology review
Lactose intolerance
Peptic ulcer
Peptic ulcers and stomach cancer: Clinical
Helicobacter pylori
Hepatitis A and Hepatitis E virus
Cirrhosis: Clinical
Hepatitis B and Hepatitis D virus
Hepatitis C virus
Pancreatitis: Clinical
Chronic pancreatitis
Pancreatitis: Pathology review
Acute pancreatitis
Gallbladder carcinoma
Appendicitis
Appendicitis: Clinical
Appendicitis: Pathology review
Abdominal pain: Clinical
Celiac disease
Intussusception
Bowel obstruction: Clinical
Small intestine histology
Flashcards
Anal fistula
0 of 5 complete
Key Takeaways
An anal fistula is an abnormal passage or opening between the rectum and another organ, or the skin near the anus. It may go completely around the anal opening (external fistula) or form a connection between the rectum and another organ, such as the bladder (internal fistula). Anal fistulas often develop after an infection or abscess in the area around the anus. Anal sex can also cause an anal fistula. Symptoms of an anal fistula include drainage from the opening, pain, swelling, and fever.