COMMON GIT DISEASE||IBS IBD Ulcerative Colitis Crohn's Disease||RognidanPaper2|| Bams Morden disease

Diagnosis Colonoscopy + biopsy (definitive) Blood tests (inflammatory markers like CRP, ESR) Imaging (CT/MRI) for Crohn's diseaseAny part of Gl tract (mouth → anus) Patchy, skip lesions Transmural (all layers) Deep, cobblestone appearanceIntroduction to Irritable Bowel Syndrome (IBS) Irritable Bowel Syndrome (IBS) is a common functional gastrointestinal disorder characterized by chronic abdominal pain or discomfort associated with altered bowel habits, without any detectable structural or biochemical abnormality. Stress / Anxiety + Dietary factors / Infection ↓ ↓ Gut-Brain Axis disturbanceUlcerative Colitis (UC) - inflammation limited to colon and rectum, usually continuous. 2. Crohn's Disease (CD) - inflammation can involve any part of Gl tract from mouth to anus, often patchy (skip lesions). Abnormal bowel movement (↑ or ↓ motility) ↓ ↓ Increased gut sensitivity Abdominal pain Diarrhea / Constipation Bloating ↓ IBS Strictures, fistulas, abscesses May be bloody or waterySymptoms Epigastric discomfort or pain Fullness after meals Early satiety Bloating Nausea Belching Heartburn (sometimes) Often severe, localized Similar, may be more severe Worsens diseaseUC: Continuous mucosal inflammation of colon and rectum. CD: Patchy transmural inflammation of any part of Gl tract.