Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs.
Rheumatic fever is a complex disease that affects the joints, skin, heart, blood vessels, and brain. It occurs mainly in children between the ages of 5 to 15.
Rheumatic fever is a complication of a strep throat. About three people out of every 10 who have a strep throat infection develop rheumatic fever. One common and potentially dangerous effect of rheumatic fever is damage to the valves of ...
Rheumatic heart disease is a condition where the heart valves have been permanently damaged by rheumatic fever.
Rheumatic heart disease is a condition that causes permanent damage to the heart valves.
Rheumatoid arthritis (RA) is a long-term (chronic) disease that causes inflammation of the joints. The inflammation can be so severe that it affects how the joints and other parts of the body look and function.
Rheumatoid vasculitis is a condition that causes blood vessels to be inflamed. It happens in some people who have had rheumatoid arthritis (RA) for a long time.
Rhinitis is when a reaction occurs that causes a stuffy nose, runny nose, sneezing, and itching. Most types of rhinitis are caused by an inflammation. Here's what you need to know.
Right bundle branch block comes from a problem with the heart's ability to send electrical signals. It usually doesn't cause symptoms unless you have some other heart condition.
Ringworm is a type of skin infection cause by a fungus. It looks like a red skin rash that forms a ring around normal-looking skin. Ringworm can be of several types.
Anemia is when your blood has lower levels of red blood cells, or your red blood cells don't have enough of the protein hemoglobin. Hemoglobin carries oxygen, which is sent around the body through blood. Anemia may occur after ...
Rocky Mountain spotted fever (RMSF) is a bacterial infection. It’s spread by the bite of an infected tick.
Rocky Mountain spotted fever (RMSF) is an infection caused by the bite of an infected tick.
Detailed information on the most common types of rosacea, including prerosacea, vascular rosacea, inflammatory rosacea, and rhinophyma
Roseola is a contagious viral illness. It causes a high fever and then a rash that develops as the fever goes away.
Your rotator cuff is one of the most important parts of your shoulder. Read on to learn details about rotator cuff injury, from symptoms and diagnosis to treatment.
Rotavirus is a contagious virus that causes nausea and diarrhea. It is the leading cause of severe infectious diarrhea in children.
Roundworm infection is a type of parasitic illness. This is an illness in which an organism lives inside the body of another creature. The worms live and grow inside the body and may cause symptoms.
Rubella is sometimes called German measles. It is a viral infection. It usually causes a mild illness in children. Adults have a slightly more severe illness.
Rubella is a viral illness that causes a mild fever and a skin rash. It is also called German measles, but is not caused by the same virus that causes measles (rubeola).
Rumination syndrome causes an automatic regurgitation of recently eaten food. Here's what you need to know about this disorder.
Runner's knee means that you have dull pain around the front of the knee (patella). This is where the knee connects with the lower end of the thighbone (femur).