Chronic Conditions

Inflammatory Bowel Disease (Crohn's, UC): UK Online Doctor

7 min readLast reviewed 24 April 2026

Educational information — not medical advice.

This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.

Key points

  • IBD includes Crohn's disease and ulcerative colitis.
  • Lifelong condition with flares and remissions.
  • Specialist gastroenterology care is essential.
  • Online GPs can support repeat prescriptions, mild flares and sick notes.

Symptoms

  • Persistent diarrhoea, often bloody (UC).
  • Abdominal pain (especially Crohn's).
  • Fatigue, weight loss.
  • Mouth ulcers, joint pain, eye inflammation, skin rashes.

Treatment overview

  • Aminosalicylates (mesalazine): mainstay for UC.
  • Steroids: short courses for flares.
  • Immunomodulators (azathioprine, methotrexate).
  • Biologics (infliximab, adalimumab, vedolizumab).
  • Surgery for complications or refractory disease.

Online GP role

An online doctor can issue repeat mesalazine, support symptom flares, arrange blood tests, write sick notes and ensure specialist follow-up isn't lost.

Red flags — when to seek urgent help

Call 999 or go to A&E if you experience any of the following:

  • Severe abdominal pain with fever
  • Persistent bloody diarrhoea
  • Significant weight loss
  • Signs of bowel obstruction

Frequently asked questions

Common questions UK patients ask about inflammatory bowel disease.

How an online doctor can help

This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.

See a UK GP about this today

Same-day video or phone consultations with GMC-registered GPs. Prescriptions, sick notes and referrals when clinically appropriate.