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Other symptoms of constipation include hard stools that are difficult to pass, or a sensation of incomplete evacuation.

The list of medications that can be culprits includes antidepressants, antacids containing aluminum or calcium, iron supplements, anticonvulsants for epilepsy, pain medications (especially narcotics), tranquilizers, diuretics, calcium channel blockers for hypertension and heart conditions, and drugs to treat Parkinson's disease.

If you don't eat many fruits, vegetables, or whole grains, constipation can occur. High-fat meats, dairy products, eggs, and rich desserts also can cause constipation. To help avoid constipation, eat more fresh fruits and vegetables, either cooked or raw, and more whole-grain cereals and breads. Dried fruits such as apricots, prunes, and figs are especially high in fiber.

If your teeth are in poor shape, you may choose soft, processed foods to eat. Those foods contain minimal fiber.

Older adults sometimes don't drink enough fluids, especially if they are not eating regular meals. Water and other liquids add bulk to stools, making bowel movements easier. The National Institute of Diabetes and Digestive and Kidney Diseases recommends drinking enough fluid every day to prevent dehydration. Check with your doctor on the amount that's appropriate for you, especially if you have heart, blood vessel, or kidney problems. Be aware that some people become constipated from drinking large amounts of milk.

Although many people believe that laxatives are a cure for constipation, they pose a danger. Using them often can be habit forming. The body begins to rely on laxatives and forgets how to work on its own. Using laxatives often can also lead to diarrhea. Mineral oil is also used as a laxative by many people; too frequent use of mineral oil may reduce the body's ability to use vitamins A, D, E, and K. A health care provider may prescribe laxatives for a limited amount of time for cases of chronic constipation.

Keep in mind that regularity differs from person to person. If your bowel movements are usually painless and occur regularly (whether two times a day or three times a week), then you are probably not constipated.