Conditions list medically reviewed by George Krucik, MD, MBA
Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared…
Meningitis can affect you differently depending on your age. Learn more about the symptoms and risk factors for each age group.
Learn about migraine types, symptoms, triggers, and treatments as well as how they are different from regular headaches.
Giardiasis is an infection in your small intestine caused by microscopic parasites called giardia. Read on to learn more about it.
Swine flu, or H1N1, is highly contagious and can spread quickly from person to person. A simple sneeze may cause thousands of germs to spread through the air.
Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.
Low blood sodium, or hyponatremia, occurs when water and sodium are out of balance in your body. It can cause weakness, headache, nausea, and muscle cramps.
Strep throat is a bacterial infection that causes inflammation and pain in the throat. This common condition is caused by group A Streptococcus bacteria.
An aneurysm in the brain is a weak area in an artery in the brain that bulges out and fills with blood. It can be unpredictable and life-threatening, and can cause…
Tonsillitis can occur at any age and is a common childhood ailment. It is most often diagnosed in children from preschool age through their midteens.
Diabetic ketoacidosis (DKA) is a serious complication of type 1 diabetes, though it can also rarely be seen in people with type 2 diabetes.
Chronic kidney disease (CKD) is progressive and irreversible damage to the kidneys. The most common causes of CKD are high blood pressure and diabetes.
A subdural hematoma occurs when blood collects on your brain's surface beneath the skull. They usually result from a head injury.
An Addisonian crisis occurs when levels of cortisol suddenly drop. Learn more about an Addisonian crisis, including symptoms, risk factors, and treatment.
Learn how people often react to black widow spider bites. Read about how they can be treated and avoided.
Acute mountain sickness is a condition that occurs when your body can't adjust to a high level of altitude. Learn more about the signs and how to treat it.
Learn about the causes and symptoms of the West Nile virus.
Anthrax is a serious illness caused by a microbe called Bacillus anthracis that lives in soil. Read about the symptoms of anthrax.
In end-stage kidney disease, also known as end-stage renal disease (ESRD), the kidneys are functioning below 10 percent of their normal function.
Hepatitis A is inflammation of the liver caused by the hepatitis A virus. This is an acute (short-term) type of hepatitis, which usually requires no treatment.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.