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Diseases and Conditions

Find doctor-approved information about symptoms, causes, diagnosis, treatment and prevention of common diseases and conditions.

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  • Woman runner holding shin in pain

    Shin Splints

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

  • A shingles rash on a man’s back

    Shingles

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

  • An illustration of lung shapes drawn in different colors

    Shortness of Breath

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

  • Shoulder Instability

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

  • Sick Sinus Syndrome

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

  • Sickle Cell Disease

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

  • doctor performs an echocardiogram to check the heart

    Silent Heart Attacks

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

  • Woman in business clothes holding sinuses in pain

    Sinusitis

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

  • Sjögren’s Syndrome

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

  • A doctor uses a lighted instrument to closely examine moles on a female patient’s neck

    Skin Cancer

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

  • close-up of doctors hands checking man’s moles

    Skin tags

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

  • diagram showing interrupted airflow during sleep

    Sleep Apnea

    Sleep apnea is a serious sleep disorder that can cause you to stop breathing multiple times while you sleep.

  • Sleepwalking

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

  • Slipped Capital Femoral Epiphysis

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

  • Close-up of a narrowed small blood vessel

    Small Vessel Disease

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

  • Anxious young business man looking away

    Social Phobia

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

  • A man who doesn't feel well is sitting on top of his bed with his head in his hand

    Somatic Symptom and Related Disorders

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

  • Woman touching her throat because it is sore

    Sore Throat

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

  • Mother and child play with stacking cups

    Speech and Language Delay

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

  • Spina Bifida

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

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