A 40-year- old woman presents with an 8-month history of bloating and abdominal discomfort, both relieved somewhat after a bowel movement. She denies nausea or vomiting. PMH: She has been prone to constipation most of her adult life and has a history of dysmenorrhea. The patient reports no prior abdominal surgeries, medications, or weight loss.

Colonoscopy performed 1 year previously (because her father, aged 56 years, has colon cancer) was normal. Findings on examination are normal. Findings on Laboratory tests: Hemoglobin, 10.7 g/dL Mean corpuscular volume, 76 fL Ferritin, 6 μg/L Tissue transglutaminase (tTG) IgA, normal What should be the next step in her management? *This case is from the Docplexus Editorial Team and is meant for educative purpose only.