Fecal incontinence may be prevented when its cause can be prevented. Some prevention techniques include:

• Reducing constipation. When fecal incontinence is due to chronic constipation, the incontinence can be reduced or eliminated by treating the constipation. Tips include getting more exercise, consuming adequate amounts of fiber and drinking plenty of fluids. Taking fiber supplements may also reduce constipation.
  
  
• Avoid straining. Straining to defecate may weaken anal sphincter nerves and muscles, which can lead to fecal incontinence.
  
  
• Controlling or preventing diarrhea. Treating the cause of diarrhea, such as an intestinal infection, may prevent fecal incontinence. Some people can prevent diarrhea by avoiding foods that contain sugars such as lactose (from milk), fructose (from fruit) and sorbitol (sweetener used in diet foods). Avoiding caffeinated foods and drinks may also help control diarrhea.

Patients prone to constipation or diarrhea should see a physician to determine if an underlying medical condition or disease is responsible for the constipation or diarrhea. Early detection and treatment of any such problem can prevent constipation or diarrhea that may lead to fecal incontinence.