Diseases and Conditions

Sickle cell disease is a genetic condition. It runs in families and is more common in African Americans. It refers…

A silent heart attack is a heart attack without the traditional symptoms. Nearly half of all heart attacks are silent…

Sinusitis is a condition in which the lining of your sinuses becomes inflamed. Learn about the symptoms, causes, and…

Sjögren’s Syndrome is an autoimmune disease that causes dry mouth and dry eyes. It can also affect other parts of…

Skin cancer is the most common form of cancer and highly preventable.

Skin tags are non-cancerous skin growths that feel like a hanging mole. They are common with age.

Sleep apnea is a serious sleep disorder. People who have sleep apnea stop breathing for 10 seconds to 30 seconds…

Learn about the causes of and ways to deal with sleepwalking.

Slipped capital femoral epiphysis is a hip problem. It starts if the growing end of the thigh bone slips from…

Small vessel disease is a narrowing in the tiny arteries in your heart. It also is called coronary microvascular disease…

Social phobia, also called social anxiety disorder, is a fear of being judged, embarrassed, or rejected by others.

Somatic symptom and related disorders is the name for a group of conditions in which physical pain and symptoms are…

Learn what may be causing your sore throat, and what you can do about it.

Every child develops at his or her own pace. But if your child doesn’t talk as much as most children…

Spina bifida is a birth defect that affects the development of a baby’s spine during the mother’s pregnancy. The baby’s…

Spinal cord injuries (SCIs) can be caused by an accident or disease. Learn about the symptoms, treatment, and outlook of…

Squamous cell carcinoma is a common form of skin cancer. It is usually caused by too much exposure to UV…

Learn about the symptoms of and treatment options for stomach cancer.

Stomach viruses are known for stomach pain, vomiting, and fever. There are several causes and it can be very contagious…

Learn about the causes of and treatments for strabismus, or cross-eyes.