What is a pulmonary embolism A pulmonary embolism is a sudden blockage in a lung artery that is usually caused a blood clot in the

What is sacroiliitis Sacroiliitis is the inflammation of one or both of your sacroiliac joints. Sacroiliitis is characterized by lower back pain or pain in

Scorpion sting Scorpion stings can be very painful but rarely life-threatening. Although most scorpion stings cause only localized pain without life-threatening envenoming, about one third

What is tachycardia A heart rate of more than 100 beats per minute in adults is called tachycardia. What's too fast for you may depend

What is stuttering Stuttering is a speech disorder characterized by disruptions in the production of speech sounds with repetition of sounds, syllables, or words; prolongation

What is cystic fibrosis Cystic fibrosis is an inherited genetic disease characterized by the buildup of thick, sticky mucus that can damage many of your

What are shin splints The term "shin splints" also known as Medial Tibial Stress Syndrome (MTSS) refers to pain along the inner edge of the shinbone

What is serotonin syndrome Serotonin syndrome also called serotonin toxicity is a potentially life threatening condition due to excessive serotonin in your body ((Watson WA, Litovitz

What is seborrheic keratosis Seborrheic keratoses are common benign (noncancerous) wart-like growths of unknown cause seen in adults due to a thickening of an area

What is a grand mal seizure Grand mal seizure is an older term for generalized tonic-clonic seizure, which is one type of seizure that involves