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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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  • 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 anxiety disorder. It 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 Disorder

    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…

  • View of a man’s spinal column through the back of his shirt

    Spinal Cord Injury

    Common causes of spinal cord injury include falling, sports-related events, car accidents, and diseases such as polio or spina…

  • Dermatologist uses magnifying glass to examine a mole on the back of a male patient

    Squamous Cell Carcinoma

    Squamous cell carcinoma is a common form of skin cancer.

  • Stomach Cancer

    Stomach cancer is the growth of cancer cells in the lining and wall of the stomach. It’s also called gastric…

  • Woman sitting on a couch holding stomach in pain

    Stomach Flu (Gastroenteritis)

    Gastroenteritis is a medical term for a stomach virus. Many people call it the stomach flu. It can strike anyone…

  • Strabismus

    Strabismus is an eye disorder. It affects the muscle control in your eyes. The eyes don’t line up properly. Instead,…

  • Doctor checking woman’s throat with a tongue depressor

    Strep Throat

    Strep throat is an infection caused by bacteria. It is called “strep” because the bacteria that causes the infection is…

  • senior man receives injection from medical worker with gloved hands

    Stroke

    A stroke is a medical condition that occurs when the blood flow to your brain stops.

  • Stuttering

    Stuttering is a condition that affects a person’s ability to speak smoothly. It can cause them to repeat words, parts…

  • closeup of a sty on a child’s eye

    Sty

    A sty is a painful, red bump that forms on the edge of your eyelid. It may look like an…

  • Substance Abuse

    Substance abuse can happen when products aren’t used in the right way. Prescription medicines, illegal drugs, tobacco, and alcohol can…

  • Sudden Infant Death Syndrome (SIDS)

    Sudden infant death syndrome is the unexplained reason a baby under 1 year old dies while sleeping. There are no…

  • A couple holds hands while talking to a doctor holding a clipboard. Syphilis is a serious infection spread through sexual contact. It's important to seek treatment early if you notice syphilis symptoms.

    Syphilis

    Syphilis is a serious infection passed from one person to another through sexual contact. It is caused by a bacteria…

  • Teeth grinding is also known as bruxism. About 20% or 30% of children clench their teeth but usually stop as they get older.

    Teeth Grinding (Bruxism)

    Teeth grinding is also known as bruxism. About 20% or 30% of children clench their teeth but usually stop as…

  • Tennis elbow - tear in the common extensor tendon of the arm

    Tennis Elbow

    Tennis elbow (lateral epicondylitis) is a common condition that occurs when the outer tendons of the elbow swell or…

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