A blood clot blocks and stops blood flow to an artery in the lung. Often the clot starts in a leg and travels to the lung.
Disease
Tendinopathy
Repetitive activities can injure tendons, causing pain and swelling. Wear and tear from age can also cause tendinopathy. These tendon injuries are common in the hands, arms and legs.
Disease
Trigeminal neuralgia
Learn about this nerve condition that can jolt areas on the face with electric-shock-like pain.
Disease
Gastritis
Learn about the causes and treatments for this inflammation of the stomach lining.
Disease
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Disease
Subconjunctival hemorrhage (broken blood vessel in eye)
Learn about this common eye condition that may look alarming but is usually harmless and clears up without treatment.
Disease
Sinus headaches
Sinus headaches are often to blame for headache with facial pain — but that pain might actually be a migraine.
Disease
Sepsis
Learn more about the symptoms and treatment of sepsis, a serious infection-related illness.
Disease
Bladder stones
Minerals in urine can form crystals when the bladder does not empty all the way.
Disease
Cough headaches
Often triggered by coughing and other types of straining, these headaches can be harmless or signal another problem in the brain.
Disease
Polymyalgia rheumatica
Older adults who get sudden muscle pain and stiffness, mainly in the shoulders, might have this condition.
Disease
Hypoparathyroidism
Learn more about this condition in which low levels of parathyroid hormone upset the balance of calcium and phosphorus in the body.