They also can be called varicose veins. They are caused by pressure in the rectal veins from standing upright, sitting for long periods, and by poor bowel habits such as constipation, diarrhea, and straining at stool. Other factors include pregnancy, obesity, and coughing or sneezing.
Anal fissures are cracks or a split in the skin of the anal canal.
They usually are caused by the passage of a hard stool, an explosive bowel movement, or infections. It also can be the result of poor hygiene, parasitic infections such as pinworms, yeast infections, irritated large bowel, or excess irritating foods such as coffee, cola, chocolate, beer, and tomatoes. Bleeding from the rectum is often caused by hemorrhoids or anal fissures. Other more serious causes are colitis, polyps, or cancerous and noncancerous tumors. Treatment Treatment for rectal disorders begins with soaking in a hot bath ten to fifteen minutes to relieve pain and itching.