Bunions (Foot Deformity) | Types (& Bunionettes), Causes & Risk Factors, Symptoms, Diagnosis, Treatment



Bunions are a very common foot deformity. They can be caused by a variety of factors, including genetic...

Lesson on Cholera (Vibrio Cholerae) transmission, pathophysiology (ex. cholera toxin mechanism), signs and symptoms, diagnosis, treatment and prevention. Vibrio cholerae is a bacterium that can cause a gastrointestinal illness that is...

Retinal Detachment | Types, Risk Factors, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Retinal detachment is an ophthalmological (eye) condition involving the tear, ripping, or separation (“detachment”) of the...

Bacterial Keratitis (Eye Infection From Contact Lenses) | Causes, Pathophysiology, Symptoms, Diagnosis, Treatment



Bacterial Keratitis is a serious eye condition that is caused by a bacterial infection and subsequent...

7 Risks of Contact Lens Use | Eye Infections, Disease and Complications from Contact Lenses



Contact lenses are used for a variety of eye conditions, including myopia, anisometropia, and for cosmetic purposes among other...

Umbilical Hernia (“Belly Button Hernia”)| Causes, Risk Factors, Signs and Symptoms, Diagnosis, Treatment



Umbilical Hernia are hernia (bulges) that occur in the abdominal wall at or near the umbilicus (belly button). Umbilical...

It’s known as The Silent Killer – blood pressure is one of the world’s growing killers – especially in countries like China where Western diets and a growing lack of exercise are beginning to take their toll. We travel to Beijing to join...

Oral Candidiasis (Oral Thrush) | Causes, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Oral Candidiasis (Oral Thrush) is an oral infection by fungi (yeast) of the genus Candida (with Candida albicans being the most...

Paroxysmal Nocturnal Hemoglobinuria (PNH) | Causes & Pathogenesis, Symptoms, Diagnosis & Treatment







Paroxysmal Nocturnal Hemoglobinuria (PNH) is an acquired hematologic (blood) condition involving irregular...

Seborrheic Dermatitis | Dandruff and Cradle Cap | Causes, Risk Factors, Symptoms, Diagnosis, Treatment



Seborrheic Dermatitis is a condition involving inflammatory skin lesions with scaling/crusts in areas with high...

Measles is a very contagious, viral infection that causes characteristic symptoms and a characteristic rash. Measles is highly transmittable, and can be spread via multiple mechanisms. In this lesson, we discuss the Measles virus, risk...

What to Avoid with Hemorrhoids | Risk Factors and Ways to Reduce Risk



Hemorrhoidal disease involving issues with internal and external hemorrhoids is a very common condition affecting upwards of ¾ of the general population at...

Placenta Previa (Low Lying Placenta) | Risk Factors, Symptoms & Complications, Diagnosis, Treatment



Placenta Previa is an obstetrical condition involving the implantation of the placenta near or over the internal cervical...

Restless Legs Syndrome (RLS) | Causes, Signs & Symptoms, Diagnosis, Treatment



Restless Legs Syndrome (RLS) is a condition involving recurrent episodes of an urge to move the legs. RLS may be caused by changes in...

This video provides an introduction to cancer, explaining what it is, the different types of tumors (benign and malignant), and the risk factors associated with it. The video uses simple animations to visualize the differences between...

This video provides an overview of diabetes. The video explains the role of insulin in regulating blood glucose concentration and the two types of diabetes - type 1 and type 2. It also discusses the causes and treatments for each type....

Urinary Incontinence | Types (Stress, Urge, Overflow, Functional), Risk Factors, Symptoms, Diagnosis, Treatment



Urinary incontinence is a condition involving involuntary urination or loss of urine from the bladder. There are...

This video discusses the difference between communicable and non-communicable diseases, and the various risk factors that contribute to non-communicable diseases. It also explores the different effects of lifestyle factors on the...

Kidney Stones (Nephrolithiasis) Signs & Symptoms | & Why They Occur



Kidney stones (causing kidney stone disease, or nephrolithiasis) is a condition involving formation of stones (renal calculi) within the kidneys. These stones...

So, what causes mutations? Well, this is where science fiction meets science fact, sort of. In the backstory of many superheroes there will be a meeting with a radioactive substance - be it cosmic rays or radioactive waste. In real life,...