Diseases and Conditions

Shin splints describe a type of pain in your shinbone (tibia). They are often caused by overuse and heal within…

Shingles is a painful skin rash. It is also called zoster or herpes zoster. It is caused by the same…

Shortness of breath happens when you cannot get enough air into your lungs. It can be caused by asthma, lung…

Shoulder instability is the term doctors use when your shoulder is slightly out of place or feels like it…

Sick sinus syndrome is the name for several conditions in which your heart doesn’t work the correct way. Your heart…

Sickle cell disease (SCD) is a genetic red blood cell disorder.

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

Sinusitis is when the lining of your sinuses are inflamed. Due to the swelling, mucus that travels from your sinuses…

Sjögren’s syndrome is an autoimmune disease that causes dry mouth and dry eyes. It can also cause dryness in other…

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

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 that can cause you to stop breathing multiple times while you sleep.

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

Slipped capital femoral epiphysis is a hip problem that occurs in children when the end of the thigh bone slips…

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

Social phobia is an irrational fear of being judged by others during social situations.

Somatic symptom and related disorders represents the physical pain and symptoms a person feels from psychological factors.

A sore throat can feel irritated or scratchy with mild to burning pain. Most sore throats are caused by viruses,…

A speech and language delay is when your child doesn’t talk as much as most other children their age.

Spina bifida is a birth defect that happens when a baby’s spine and spinal cord don’t close completely during…