Conditions list medically reviewed by George Krucik, MD, MBA
Food poisoning occurs when you consume foods contaminated with bacteria, viruses, or parasites. Symptoms are usually uncomfortable but not severe.
Viral gastroenteritis, also known as the stomach flu, is caused by a number of different viruses. Its symptoms usually last for two to three days.
Meningitis can affect you differently depending on your age. Learn more about the symptoms and risk factors for each age group.
Strep throat is a bacterial infection that causes inflammation and pain in the throat. This common condition is caused by group A Streptococcus bacteria.
Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared…
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.
A bladder infection is a bacterial infection. It also may be called a UTI, which refers to infection in the bladder, kidneys, ureters, or urethra.
Bacterial infections are common causes of gastrointestinal infections. This type of infection is also called "food poisoning" and is often caused by poor hygiene or…
Malaria is a life-threatening disease that's typically transmitted through the bite of an infected Anopheles mosquito. Learn more about symptoms, diagnosis, and…
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.
Diverticulitis occurs when pouches in the wall of your colon become infected or inflamed. We'll explain treatments and foods you should and shouldn't eat.
Acute pancreatitis is an inflammation in the pancreas, which causes pain and swelling in the upper left side of the abdomen, nausea, and burping.
Salmonella food poisoning is one of the most common types of food poisoning. The Salmonella bacteria live in the intestines of humans and animals.
Peritonitis is the inflammation of a thin layer of tissue inside the abdomen. Caused by bacteria or fungus, it causes tenderness, bloating, fatigue, greying of the skin…
Kidney stones are solid masses of crystalized calcium or other substances that originate in the kidneys but can pass through the urinary tract. The greatest risk factor…
Pelvic inflammatory disease (PID) is an infection of the reproductive organs in women. It's marked by pain in the abdomen, especially during urination or sex.
Urethritis is a condition in which the urethra, or the tube that carries urine from the bladder to outside the body, becomes inflamed and irritated.
Learn about migraine types, symptoms, triggers, and treatments as well as how they are different from regular headaches.
Toxic shock syndrome is a rare but serious condition caused by a bacterial infection. Read more about its causes and symptoms and when to see a doctor.
An Addisonian crisis occurs when levels of cortisol suddenly drop. Learn more about an Addisonian crisis, including symptoms, risk factors, and 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.