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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Inflammatory Bowel Disease IV: Clinical Manifestations01:20

Inflammatory Bowel Disease IV: Clinical Manifestations

Inflammatory bowel disease (IBD) encompasses two major chronic disorders—ulcerative colitis and Crohn’s disease—each characterized by relapsing episodes of gastrointestinal inflammation. Although they share certain clinical features, their patterns of involvement and manifestations differ in ways that aid diagnosis and guide management.Ulcerative ColitisUlcerative colitis is limited to the colon and rectum and involves continuous inflammation of the mucosal layer. The disease course is marked...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
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Inflammatory Bowel Disease II: Ulcerative Colitis01:20

Inflammatory Bowel Disease II: Ulcerative Colitis

Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal BarrierA...

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Related Experiment Video

Updated: May 17, 2026

Bovine Mammary Gland Biopsy Techniques
14:53

Bovine Mammary Gland Biopsy Techniques

Published on: December 23, 2018

Cow's milk associated rectal bleeding: a population based prospective study.

Arnon Elizur1, Michal Cohen, Michael R Goldberg

  • 1Department of Pediatrics, Assaf Harofeh Medical Center, Zerifin, Israel. elizura@gmail.com

Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology
|October 12, 2012
PubMed
Summary
This summary is machine-generated.

Isolated rectal bleeding in infants due to cow's milk protein allergy is rare, affecting 0.16% of infants. This condition is typically benign and resolves with dietary changes, with reintroduction of cow's milk often well-tolerated.

Related Experiment Videos

Last Updated: May 17, 2026

Bovine Mammary Gland Biopsy Techniques
14:53

Bovine Mammary Gland Biopsy Techniques

Published on: December 23, 2018

Area of Science:

  • Pediatric Gastroenterology
  • Allergy and Immunology
  • Clinical Nutrition

Background:

  • Isolated rectal bleeding in infants is commonly linked to cow's milk consumption.
  • The exact prevalence, diagnostic approaches, and management strategies for this condition remain debated.

Purpose of the Study:

  • To determine the prevalence of isolated rectal bleeding attributed to cow's milk protein in infants.
  • To evaluate diagnostic methods and management strategies, including dietary elimination and reintroduction of cow's milk protein.

Main Methods:

  • A prospective, population-based study followed 13,019 infants from birth.
  • 21 infants with isolated rectal bleeding due to cow's milk protein were identified and managed.
  • Infants were followed for symptom recurrence after dietary modifications and compared to a control group.

Main Results:

  • The prevalence of isolated rectal bleeding attributed to cow's milk was found to be 0.16%.
  • All infants became asymptomatic within days of dietary modifications.
  • Reintroduction of cow's milk protein was tolerated by 78.5% of infants, with no significant difference in 1-year hemoglobin levels compared to those on elimination diets.

Conclusions:

  • Isolated rectal bleeding attributed to cow's milk protein is a low-prevalence, generally benign condition.
  • Dietary elimination is effective for symptom resolution, and reintroduction of cow's milk is often well-tolerated.
  • Reintroducing cow's milk protein is recommended to confirm diagnosis and prevent unnecessary prolonged elimination diets.