Differential Diagnosis for LLQ Abdominal Pain Worsening with Bowel Movements
- Single Most Likely Diagnosis
- Diverticulitis: This condition is characterized by inflammation of the diverticula in the colon, which can cause left lower quadrant (LLQ) abdominal pain. The pain often worsens with bowel movements due to the increased pressure on the inflamed diverticula.
- Other Likely Diagnoses
- Constipation: Hard stools or difficulty passing stools can cause strain and pain in the LLQ, especially during bowel movements.
- Irritable Bowel Syndrome (IBS): IBS can cause abdominal pain, bloating, and changes in bowel habits, including pain that worsens with bowel movements.
- Colitis: Inflammation of the colon, such as ulcerative colitis or Crohn's disease, can cause LLQ pain that worsens with bowel movements due to the increased inflammation and irritation.
- Do Not Miss Diagnoses
- Appendicitis (although typically presents with right lower quadrant pain, it can occasionally present atypically): It's crucial to consider appendicitis, as a delayed diagnosis can lead to severe complications, including perforation and peritonitis.
- Intestinal Obstruction: A blockage in the intestine can cause severe abdominal pain, vomiting, and constipation, and can be life-threatening if not promptly treated.
- Ectopic Pregnancy: Although more common in women with missed periods or vaginal bleeding, an ectopic pregnancy can cause LLQ pain and should be considered in women of childbearing age.
- Rare Diagnoses
- Inflammatory Bowel Disease (e.g., Crohn's disease affecting the sigmoid colon): While not the most common cause, Crohn's disease can affect any part of the gastrointestinal tract and cause LLQ pain.
- Colon Cancer: Although rare in younger individuals, colon cancer can cause LLQ pain, changes in bowel habits, and weight loss.
- Ovarian Torsion or Cyst: In women, ovarian torsion or a ruptured ovarian cyst can cause severe LLQ pain and should be considered, especially if there are associated symptoms like vaginal bleeding or pelvic pain.