How to diagnose Hemorrhoids ?
The doctor will examine the anus and rectum to determine whether a person has hemorrhoids. Hemorrhoid symptoms are similar to the symptoms of other anorectal problems, such as fissures, abscesses, warts, and polyps.
                
The doctor will perform a physical exam to look for visible hemorrhoids. A digital rectal exam with a gloved, lubricated finger and an anoscopea hollow, lighted tubemay be performed to view the rectum.
                
A thorough evaluation and proper diagnosis by a doctor is important any time a person notices bleeding from the rectum or blood in the stool. Bleeding may be a symptom of other digestive diseases, including colorectal cancer.
                
Additional exams may be done to rule out other causes of bleeding, especially in people age 40 or older:
                
- Colonoscopy. A flexible, lighted tube called a colonoscope is inserted through the anus, the rectum, and the upper part of the large intestine, called the colon. The colonoscope transmits images of the inside of the rectum and the entire colon.  - Sigmoidoscopy. This procedure is similar to colonoscopy, but it uses a shorter tube called a sigmoidoscope and transmits images of the rectum and the sigmoid colon, the lower portion of the colon that empties into the rectum.  - Barium enema x ray. A contrast material called barium is inserted into the colon to make the colon more visible in x ray pictures.