Ulcerative Colitis (UC)

Ulcerative Colitis is a chronic inflammatory bowel disease limited to the colon and rectum. The immune system attacks the colonic mucosa, leading to ulcers, bleeding, and frequent bowel movements. UC typically progresses continuously from the rectum upward and alternates between flares and remission.

Causes & Risk Factors

• Immune response to gut bacteria in genetically susceptible individuals
• Family history of IBD
• Age 15–35 or 50–70
• Former smoking status (contrary to Crohn's)
• Western diet, stress, or recent infections may trigger flares

Symptoms

• Bloody diarrhea or mucus in stool
• Urgency, tenesmus, nocturnal bowel movements
• Abdominal cramping, especially left-sided
• Fatigue, fever, weight loss
• Anemia and nutrient deficiencies
• Extraintestinal involvement: arthritis, skin rashes, eye inflammation, PSC

Seek immediate care for severe bleeding, dehydration, or signs of toxic megacolon.

Diagnosis

• Colonoscopy with biopsies: Continuous inflammation, loss of vascular pattern, crypt abscesses.
• Blood/stool tests: Elevated CRP/ESR, anemia, stool calprotectin.
• Imaging: CT or MRI for complications, abdominal X-ray during acute severe colitis.

Treatment Strategy

Medication Classes

• Aminosalicylates (5-ASA): Oral or rectal mesalamine.
• Corticosteroids: Prednisone or budesonide for flare control only.
• Immunomodulators: Azathioprine, 6-MP.
• Biologics: Anti-TNF (infliximab, adalimumab), anti-integrin (vedolizumab), anti-IL-12/23 (ustekinumab), JAK inhibitors.
• Topical therapies: Suppositories/enemas for distal disease.

Surgery

• Total proctocolectomy with ileal pouch-anal anastomosis (IPAA) may be curative.
• Indicated for refractory disease, dysplasia, or cancer risk.

Lifestyle & Nutrition

• Identify trigger foods; some benefit from low-residue or Mediterranean patterns.
• Stay hydrated and monitor electrolytes during flares.
• Supplement iron, vitamin D, calcium, and B12 as needed.
• Manage stress, prioritize sleep, and engage in low-impact exercise.
• Avoid NSAIDs; use acetaminophen for pain when possible.

Living with UC

• Track stools, urgency, blood, and pain to detect flares early.
• Keep up with colon cancer surveillance (typically every 1–2 years after 8 years of disease).
• Vaccinate appropriately (non-live if immunosuppressed).
• Monitor bone density if exposed to steroids repeatedly.

Research & Emerging Care

Novel targets include S1P receptor modulators, microbiome-based therapies, and precision dosing guided by drug trough levels or biomarkers.

Experimental & Emerging Treatments

• Fecal Microbiota Transplant (FMT): Repeated FMT infusions are being studied for steroid-dependent UC, with some trials showing prolonged remission.
• S1P Modulators (etrazimod): Oral agents that trap lymphocytes in lymph nodes are in late-stage trials after success in other inflammatory diseases.
• CAR-Treg and Cellular Therapies: Experimental infusions of regulatory T cells or mesenchymal stem cells aim to calm mucosal inflammation without chronic steroids.
• Electroceutical & Neuromodulation Devices: Vagal nerve stimulation is being explored to modulate the gut-brain axis and reduce flares.

Track Ulcerative Colitis in Diagnoza.care

Support Your UC Remission – Record bowel habits, bleeding, medications, and infusion schedules, attach lab reports, plan colonoscopies via the AI calendar, and let our AI companion highlight flare predictors for GI appointments.

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Medical Disclaimer: Educational only. Work closely with your gastroenterologist to confirm diagnosis, medications, and colon surveillance. Sources: Crohn’s & Colitis Foundation, American College of Gastroenterology, National Institute of Diabetes and Digestive and Kidney Diseases