What are hemorrhoids?
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.
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, discomfort, and anal itching.
Blood clots may form in external hemorrhoids. A blood clot in a vein is called a thrombosis. Thrombosed external hemorrhoids cause bleeding, painful swelling, or a hard lump around the anus. When the blood clot dissolves, extra skin is left behind. This skin can become irritated or itch.
Excessive straining, rubbing, or cleaning around the anus may make symptoms, such as itching and irritation, worse.
Hemorrhoids are not dangerous or life threatening. Symptoms usually go away within a few days, and some people with hemorrhoids never have 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
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 may enlarge the veins in the lower rectum and anus. For most women, hemorrhoids caused by pregnancy disappear after 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:
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.3 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 such as psyllium (Metamucil) or methylcellulose (Citrucel).
Other changes that may help relieve hemorrhoid symptoms include
Over-the-counter 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.
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:
Large external hemorrhoids or internal hemorrhoids that do not respond to other treatments can be surgically removed.
What foods have fiber?
Examples of foods that have fiber include
Breads, cereals, and beansFiber
Whole-grain cereal, cold
1 packet of whole-grain cereal, hot3.0 grams
1 whole-wheat English muffin4.4 grams
Source: U.S. Department of Agriculture and U.S. Department of Health and Human Services, Dietary Guidelines for Americans, 2005.
Points to Remember
Hope through Research
The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) sponsors research to improve treatment for people with digestive disorders, including hemorrhoids and constipation. Researchers are studying new drugs and surgical procedures to treat or prevent hemorrhoids.
Participants in clinical trials can play a more active role in their own health care, gain access to new research treatments before they are widely available, and help others by contributing to medical research. Information about current studies.
For More Information
American College of Gastroenterology
American Gastroenterological Association
American Society of Colon and Rectal Surgeons
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