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Sick Sinus Syndrome
Learn about the symptoms, diagnosis and treatment of sick sinus syndrome, the name for several conditions in which the heart’s…
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Sickle Cell Disease
Sickle cell disease is a genetic condition. It runs in families and is more common in African Americans. It refers…
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Silent Heart Attacks
A silent heart attack is a heart attack without the traditional symptoms. Nearly half of all heart attacks are silent…
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Sinusitis
Sinusitis is when the lining of your sinuses are inflamed. Due to the swelling, mucus that travels from your sinuses…
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Sjögren’s Syndrome
Sjögren’s syndrome is an autoimmune disease that causes dry mouth and dry eyes. It can also cause dryness in other…
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Skin Cancer
Skin cancer is the most common form of cancer and highly preventable.
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Skin tags
Skin tags are non-cancerous skin growths that feel like a hanging mole. They are common with age.
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Sleep Apnea
Sleep apnea is a serious sleep disorder. People who have sleep apnea stop breathing for 10 seconds to 30 seconds…
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Sleepwalking
Learn about the causes of and ways to deal with sleepwalking.
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Slipped Capital Femoral Epiphysis
Slipped capital femoral epiphysis is a hip problem. It starts if the growing end of the thigh bone slips from…
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Small Vessel Disease
Small vessel disease is a narrowing in the tiny arteries in your heart. It also is called coronary microvascular disease…
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Social Phobia
Social phobia is an irrational fear of being judged by others during social situations.
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Somatic Symptom and Related Disorders
Somatic symptom and related disorders is a group of conditions in which the physical pain and symptoms a person feels…
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Sore Throat
Learn what may be causing your sore throat, and what you can do about it.
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Speech and Language Delay
Every child develops at his or her own pace. But if your child doesn’t talk as much as most children…
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Spina Bifida
Spina bifida is a birth defect that affects the development of a baby’s spine during the mother’s pregnancy. The baby’s…
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Spinal Cord Injury
Spinal cord injuries (SCIs) can be caused by an accident or disease. Learn about the symptoms, treatment, and outlook of…
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Squamous Cell Carcinoma
Squamous cell carcinoma is a common form of skin cancer caused by too much exposure to ultraviolet (UV) radiation.
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Stomach Cancer
Learn about the symptoms of and treatment options for stomach cancer.
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Stomach Virus (Gastroenteritis)
Stomach viruses are known for stomach pain, vomiting, and fever. There are several causes and it can be very contagious…