Lead Poisoning (Lead Toxicity) | Sources, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Lead Poisoning (also known as Lead Toxicity) is a condition involving exposure and increased levels of lead in the blood. Lead...

Dengue Fever & What You Need to Know, including Pathophysiology, Symptoms, Diagnosis & Treatment. Dengue fever is a viral infection with potentially fatal consequences. In this lesson, we discuss how people are infected with Dengue...

Crohn’s disease is a chronic inflammatory bowel disease that can involve inflammation anywhere in the gastrointestinal tract (anywhere from mouth to perianal region). Due to it being a chronic inflammatory state, Crohn’s disease can lead...

Lesson on Approach to Microcytic Anemia and an Easy Way to Remember Causes (including iron-deficiency anemia, thalassemia, sideroblastic anemia, anemia of chronic disease and lead poisoning). Microcytic anemia is a low hemoglobin with a...

Ogilvie Syndrome | Pseudo-Obstruction of the Large Intestine | Causes, Symptoms, Diagnosis, Treatment



Ogilvie syndrome (also known as acute colonic pseudo-obstruction) is a condition involving signs and symptoms of a large...

Endometrial Cancer Signs & Symptoms (& Why They Occur)



Endometrial Cancer (also known as Endometrial carcinoma or Corpus cancer) is a cancer of the inner lining of the uterus known as the endometrium. Female patients (and...

Small Bowel Obstruction (SBO) | Risk Factors, Causes, Signs & Symptoms, Diagnosis, Treatment



Small bowel obstructions (SBO) are mechanical blockages or occlusions of the small intestine. They can occur due to the small...

Pelvic Inflammatory Disease (PID) Signs & Symptoms (& Why They Occur)



Pelvic inflammatory disease (PID) is a condition involving inflammation of pelvic structures, including the endometrium, fallopian tubes and ovaries. PID...

Weird Symptoms of Tapeworm Infection (Skin, Psychological, Neurological)



Tapeworms are parasites that infect the gastrointestinal tract in humans. Many species infect humans, with each species causing many similar...

Tropical Sprue | Causes, Pathogenesis, Signs & Symptoms, Diagnosis, Treatment



Tropical Sprue is a gastrointestinal condition of unknown etiology (although likely infectious in nature). It involves malabsorption of nutrients...

Irritable Bowel Syndrome (IBS) Signs & Symptoms | Reasons for Why Symptoms Occur



Irritable Bowel Syndrome (IBS) is a relatively common gastrointestinal condition that affects a wide variety of individuals, often with an onset...

3 Parasitic Infections From Fish (Diphyllobothriasis, Clonorchiasis, Anisakiasis)



Many fish species act as intermediate hosts for a variety of parasite species. In the event that a human ingests contaminated uncooked or...

Weird Symptoms of Diverticulitis | Atypical Clinical Features of Diverticulitis



Diverticulitis is a gastrointestinal condition involving inflammation of diverticula, which are bulges in the large intestinal wall due to...

Ulcerative Colitis Signs and Symptoms (& Why They Occur), and Complications



Ulcerative Colitis is a chronic inflammatory bowel disease that involves inflammation in the large intestine (colon). Due to it being a chronic...

Constipation | Approach to Causes, Associated Conditions & Symptoms, Treatments



Constipation is a very common gastrointestinal complaint that involves decreased frequency of bowel movements and/or increased consistency of...

Diverticulitis is a gastrointestinal condition involving inflammation of diverticula, which are outpouchings or “bulges” in the large intestine that are caused by weak large intestine walls. The diverticula can form more commonly in...

Appendicitis Signs & Symptoms | & Why They Occur



Appendicitis is a condition involving inflammation of the appendix. Appendicitis occurs due to blockage of the appendiceal lumen, which leads to bacterial overgrowth or...

Candidal (Yeast) Infections Overview | Oral Thrush, Vaginal, Intertrigo, Esophageal Candidiasis



Yeast (Candidal) infections are a group of infections caused by fungi of the genus Candida. They are often opportunistic...

Celiac Disease Signs & Symptoms | Nutrient Deficiencies & Why Symptoms Happen



Celiac disease is an autoimmune gastrointestinal disorder that causes damage/destruction/injury to the gastrointestinal mucosa, leading to issues...