In this condition, parts of the body's main artery or its branches go around the windpipe or esophagus. It is a type of congenital heart defect.
Disease
Vasculitis
This swelling and irritation of the blood vessels may thicken and weaken blood vessel walls. It can restrict blood flow and damage organs.
Disease
Vasovagal syncope
Learn about what causes a brief loss of consciousness and when to see a healthcare professional if this happens to you.
Disease
Ventricular fibrillation
Without fast treatment, this heart rhythm problem can cause death within minutes. Learn the symptoms of VFib and what actions to take to save a life.
Disease
Ventricular septal defect (VSD)
In this heart problem present at birth, there is a hole between the two lower heart chambers. Know the symptoms and when surgery is needed.
Disease
Ventricular tachycardia
This rapid heart rate can be a medical emergency. Know the warning symptoms and how it's treated.
Disease
Vertebral tumor
Learn about these tumors that grow in the bones of the spine, causing pain and weakening the spinal column. Find out about diagnosis and treatment.
Disease
Vesicoureteral reflux
Learn about what happens if urine flows backward from the bladder. Usually found in children, this condition boosts the risk of urinary tract infections.
Disease
Viral gastroenteritis (stomach flu)
This condition, often called stomach flu, is usually harmless, except for infants and people with immunosuppression. Symptoms can usually be managed.
Disease
Viral hemorrhagic fevers
Learn about the symptoms, treatment and prevention of these sometimes deadly diseases.
Disease
Vitamin deficiency anemia
A lack of folate and vitamin B-12 can cause red blood cells to become too large so they can't carry oxygen well.
Disease
Vitiligo
Learn more about this condition in which your skin loses pigment cells, resulting in very light or white patches on parts of the body.