Chronic diarrhoea, lasting more than 3 or 4 weeks, is a common condition with a wide variety of different possible causes. Estimates suggest 5% of the population have experienced chronic diarrhoea and sought medical advice about it. All gastroenterologists see many patients whose principal complaint is frequent, loose stools, and will be aware of investigations that are needed to diagnose serious conditions such as inflammatory bowel disease (IBD) or colorectal cancer (CRC). Most people who present with chronic diarrhoea will not have these conditions and, if less common disorders are not considered, may be given a diagnosis of diarrhoea-predominant irritable bowel syndrome (IBS-D) or perhaps functional diarrhoea. Many different treatments are used for IBS-D and often benefit only a small proportion of patients, leaving many with unmet needs, seeking further investigation, advice and treatment.

Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is a subclassification of steatotic liver disease (SLD), defined as the presence of excess triglyceride storage in the liver in conjunction with at least one cardiometabolic risk factor and no other discernible cause.1 Cirrhosis secondary to MASH is the most common cause of liver disease in the world and is the fastest-growing indication for liver transplantation, but it also has a >50% recurrence rate post-transplantation.

Inflammatory bowel disease (IBD) is a chronic relapsing gastrointestinal disease, often affecting young people during their fertile years. The chronic character of IBD means that lifelong medical treatment is often required. As such, it is not surprising that questions often arise about fertility and pregnancy in patients with IBD. The most important risk factor for adverse pregnancy outcomes in IBD patients is the presence of disease activity during pregnancy. Indeed, negative pregnancy outcomes (e.g. spontaneous abortion, preterm delivery and low birth weight) are associated with disease activity at the time of conception and during pregnancy.

Proton pump inhibitors (PPIs), first introduced with omeprazole in 1988, revolutionized the treatment of gastric acid-related conditions like gastro-oesophageal reflux disease, gastroduodenal ulcers, and Helicobacter pylori infections. Despite their effectiveness, PPIs are often prescribed for conditions without a proven link to gastric acid, such as dyspepsia and upper abdominal discomfort. Long-term use of PPIs has raised safety concerns, including risks of vitamin and mineral malabsorption, pneumonia, gastrointestinal infections, and dementia. This Mistakes In article addresses nine common mistakes in PPI use and aims to clarify misconceptions about their use.

Children and adolescents with chronic diseases requiring lifelong care face unique challenges that affect their daily lives and those of their families. Initially, these patients receive specialized care in pediatric facilities, where parents play a key role in treatment decisions. However, transitioning to adult healthcare facilities is inevitable, and this process, recognized as crucial years ago, involves moving adolescents with chronic conditions from child-centered to adult-oriented care. This transition can be complicated by varying age limits for pediatric care and the scarcity of adult care centers with specific expertise. The transition often requires cooperation between different centers or even countries due to patient mobility. The transition phase is critical, as it can lead to loss of follow-up, treatment suspension, and increased risks of complications or disease relapse. Beyond medical management, various factors influence the long-term prognosis of chronic conditions, making a well-organized transition program essential. While many hospitals have implemented transition models with mixed results in satisfaction, disease control, and follow-up adherence, there are frequent shortcomings in the process. This Mistakes In article will outline eight common mistakes made during the transition from pediatric to adult care, supported by literature and professional experience.