Constipation then becomes more likely. Frequent use of laxatives can bring on constipation. Laxatives may clear out the bowel too completely and lead to bowel inactivity. That prompts the taking of another dose of laxative, which again overempties the bowel and often starts a cycle of frequent laxative use. This is especially true of people who are overly concerned about having regular bowel movements.
Constipation is a common problem among pregnant women.
By the fourth month of pregnancy, a woman's uterus has expanded enough to put pressure on the intestines and to increase the likelihood of constipation. The problem is easily avoided by drinking eight to ten glasses of water daily and eating plenty of fruits, vegetables, and other high-fiber foods. Children also become constipated in several different situations. Infants on an all-milk diet after normal weaning time may develop hard stools because milk contains no fiber. Adding cereal or fruit to the diet usually helps.