In this condition, the muscles in the esophagus don't relax, preventing food and drink from moving into the stomach. Learn more about this rare digestive disorder.
Disease
Botulism
This rare but serious condition can be caused by bacteria that have contaminated food or a wound. Learn more about how to prevent botulism.
Disease
Arteriovenous malformation
In this condition, a tangle of blood vessels affects the flow of blood and oxygen. Treatment can help.
Disease
Ehrlichiosis and anaplasmosis
Learn how to prevent and treat the tick-borne diseases ehrlichiosis and anaplasmosis.
Disease
Addison's disease
Learn about this rare but serious condition of the adrenal glands that's treated by replacing hormones the body needs.
Disease
Foot drop
Foot drop is a general term that describes a difficulty in lifting the front part of the foot. It's often caused by compression of a nerve.
Disease
Swollen lymph nodes
Infection from bacteria or viruses most often causes this condition.
Disease
Salmonella infection
This common bacterial infection is spread through contaminated food or water and affects the intestinal tract. Learn more about prevention and treatment.
Disease
Cholera
This dangerous but treatable disease causes diarrhea and dehydration. Learn how to lower your risk.
Disease
Histoplasmosis
Learn more about the symptoms and treatment of this sometimes life-threatening disease caused by fungal spores in bird and bat droppings.
Disease
Congenital diaphragmatic hernia (CDH)
In CDH, a baby's diaphragm — the muscle that separates the chest from the abdomen — develops a hole called a hernia. Learn about treatment before birth.
Disease
Food poisoning (foodborne illness)
Learn more about illnesses that can cause upset stomach, vomiting and diarrhea within hours of eating tainted food.