NURS 330: Understanding Constipation

Overview of Constipation

  • Definition: Constipation is a common condition leading to a backup in the digestive system.

    • Causes difficulty in passing lumpy hard stools and may be chronic.

The Digestive System and Colon

  • Daily Experience: Visiting the bathroom is a routine part of human life.

  • Colon Structure:

    • Definition: The colon is also referred to as the large intestine.

    • Sections:

    • Ascending Colon: Located on the right side of the abdomen.

    • Transverse Colon: Crosses the abdomen from right to left.

    • Descending Colon: On the left side, leading towards the sigmoid.

    • Sigmoid Colon: Connects to the rectum and anus.

    • Function: The small intestine delivers stool, composed of ingested food, bile, and digestive juices, to the colon.

Stool Formation and Movement

  • Process:

    • Stool transitions from liquid to solid as it moves through the colon.

    • The colon absorbs water, and prolonged transit time leads to increased solidity of stool.

  • Final Stages:

    • Once the stool reaches the sigmoid colon, water reabsorption continues.

    • The rectum is distended and signals the internal anal sphincter to relax.

Regulation of Defecation

  • Voluntary Control: The decision to expel or retain stool is influenced by the pelvic floor muscles:

    • Puborectalis Muscle: Forms a sling-like arrangement around the rectum affecting the anorectal angle.

    • External Anal Sphincter: When voluntarily relaxed, it allows for stool expulsion.

Causes of Constipation

  • Factors Contributing:

    1. Slow Movement through the Colon:

    • Excessive transit time leads to over-absorption of water, causing the stool to be dry and hard.

    1. Pelvic Floor Dysfunction:

    • Difficulty in expelling stool can result from:

      • Tightened pelvic floor muscles.

      • Pelvic organ prolapse (often due to childbirth or aging).

    • Results in an acute anorectal angle, complicating the expulsion process.

Diagnosis of Constipation

  • Metrics: The Bristol Stool Chart is a tool developed by researchers to assess stool consistency and identify constipation.

Ideal Toilet Positioning

  • Recommended Posture:

    • Ideally, individuals should adopt a squatting position on the toilet.

    • This can be achieved by:

    • Keeping buttocks firmly on the toilet seat.

    • Elevating feet on a stool.

    • Leaning forward with a straight back to straighten the anorectal angle to ease stool passage.

Understanding Bowel Movement Frequency

  • Normal Variability: Not having a bowel movement for one day is not immediately alarming.

  • Chronic Constipation: If experienced frequently, it indicates a need for intervention.

Remedies for Chronic Constipation

  • Lifestyle and Dietary Changes:

    • Increasing intake of fibrous vegetables.

    • Engaging in regular exercise.

    • Practicing abdominal massage.

    • Consuming 6 to 8 cups of water per day to enhance hydration and stool consistency.