What are hemorrhoids?
Hemorrhoids are swollen vessels in the lower rectum & anus due to increased pressure or straining.
Hemorrhoids are a very common occurrence in adults worldwide. In the US, over 1 million new cases are diagnosed each year and it is believed that half of adults over age 50 have had a hemorrhoid.
Hemorrhoids are swollen and inflamed veins around the anus or in the lower rectum. The rectum is the last part of the large intestine leading to the anus. The anus is the opening at the end of the digestive tract where bowel contents leave the body.
External hemorrhoids are located under the skin around the anus. Internal hemorrhoids develop in the lower rectum. Internal hemorrhoids may protrude, or prolapse, through the anus. Most prolapsed hemorrhoids shrink back inside the rectum on their own. Severely prolapsed hemorrhoids may protrude permanently and require treatment.
What are the symptoms of hemorrhoids?
The most common symptom of internal hemorrhoids is bright red blood on stool, on toilet paper, or in the toilet bowl after a bowel movement. Internal hemorrhoids that are not prolapsed are usually not painful. Prolapsed hemorrhoids often cause pain.
Blood clots may form in external hemorrhoids. A blood clot in a vein is called a thrombosis. Thrombosed external hemorrhoids cause bleeding, swelling, or a hard lump around the anus. When blood clots dissolve, extra skin is left behind, which can itch. Excessive straining, rubbing, or cleaning around the anus may make symptoms worse. Hemorrhoids are not dangerous. Symptoms usually go away within days, and some who have hemorrhoids never feel symptoms.
How common are hemorrhoids?
About 75 percent of people will have hemorrhoids at some point in their lives. Hemorrhoids are most common among adults ages 45 to 65. Hemorrhoids are also common in pregnant women.
What causes hemorrhoids?
Swelling in the anal or rectal veins causes hemorrhoids. Several factors may cause this swelling, including: chronic constipation or diarrhea, straining during bowel movements, sitting on the toilet for long periods of time and/or a lack of fiber in the diet. Another cause of hemorrhoids is the weakening of the connective tissue in the rectum and anus that occurs with age.
Pregnancy can cause hemorrhoids by increasing pressure in the abdomen, which can enlarge veins in the lower rectum and anus. For most, hemorrhoids caused by pregnancy disappear post- childbirth.
How are hemorrhoids diagnosed?
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 anoscope—a hollow, lighted tube—may 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.
How are hemorrhoids treated?
Simple diet and lifestyle changes often reduce the swelling of hemorrhoids and relieve hemorrhoid symptoms. Eating a high-fiber diet can make stools softer and easier to pass, reducing the pressure on hemorrhoids caused by straining.
Fiber is a substance found in plants. The human body cannot digest fiber, but fiber helps improve digestion and prevent constipation. Good sources of dietary fiber are fruits, vegetables, and whole grains. On average, Americans eat about 15 grams of fiber each day. The American Dietetic Association recommends 25 grams of fiber per day for women and 38 grams of fiber per day for men.
Doctors may also suggest taking a bulk stool softener or a fiber supplement.
Other changes that may help relieve hemorrhoid symptoms include: drinking 6-8 8-ounce glasses of water or other nonalcoholic fluids each day, sitting in a tub of warm water for 10mins several times a day, exercising to prevent constipation and/or not straining during bowel movements.
OTC creams and suppositories may temporarily relieve the pain and itching of hemorrhoids. These treatments should only be used for a short time because long-term use can damage the skin.
In most cases with mild symptoms, increasing fluids and fiber in the diet, soaking the hemorrhoid in plain warm water for 10 minutes at a time and topical medications can relieve some of the pain and swelling. Hemorrhoids that do not respond to these treatments may need to be removed. There are several ways your physician can remove a troublesome hemorrhoid.
If at-home treatments do not relieve symptoms, medical treatments may be needed. Outpatient treatments can be performed in a doctor’s office or a hospital. Outpatient treatments for internal hemorrhoids include the following:
Rubber band ligation. The doctor places a special rubber band around the base of the hemorrhoid. The band cuts off circulation, causing the hemorrhoid to shrink. After a few days the band and hemorrhoid will fall off leaving the site to heal over the next week or two.
Sclerotherapy. The doctor injects a chemical solution into the blood vessel to shrink the hemorrhoid.
Infrared coagulation. This technique is similar to ligation, but rather than rubber bands, your physician applies infrared light, heat or a laser to the hemorrhoid to shrink the hemorrhoid tissue. This process causes the hemorrhoid to harden, shrivel up and ultimately fall off. Coagulation has few side effects but can have a higher rate of recurrence than ligation.
Points to Remember
Hemorrhoids are swollen and inflamed veins around the anus or in the lower rectum.
Hemorrhoids are not dangerous or life threatening. Symptoms usually go away within a few days.
Simple diet and lifestyle changes often relieve hemorrhoid symptoms.
If at-home treatments do not relieve symptoms, medical treatments may be needed.