Diseases and Conditions

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

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  • fluffy domestic cat stretches its paw and claws in the air

    Cat-Scratch Disease

    Cat-scratch disease is an infection you can get after a cat scratches, bites, or licks you. It is caused by…

  • Celiac Disease

    Celiac disease is a digestive disorder that causes problems when you eat foods with gluten, such as wheat, rye and…

  • A doctor bandaging a patients hand to prevent a skin infection

    Cellulitis

    What is cellulitis? Cellulitis is a skin infection that is caused by bacteria. It is a common infection but can become a serious condition if not treated. Most of the time, cellulitis affects the skin on your lower legs. But it can appear anywhere

  • group of early teens sitting together playing on phones

    Central Precocious Puberty

    Central precocious puberty, also known as gonadotropin-dependent precocious puberty, occurs when girls less than 8 years old and boys less…

  • laughing young boy with cerebral palsy sits in his wheelchair next to his sister

    Cerebral Palsy

    Cerebral palsy is a group of neurological disorders that affect body movement and muscle coordination. It usually appears in infancy…

  • A woman clutching her cervix in pain

    Cervical Cancer

    Cervical cancer is abnormal growth of cells in a woman’s cervix. Cervical cancer is almost always caused by the human…

  • Cervical Dysplasia

    Cervical dysplasia is when there are abnormal, or precancerous, cells in and around a woman’s cervix. This doesn’t mean you…

  • Young woman massaging neck, which is in pain

    Cervical Dystonia

    Cervical dystonia is a neurological disorder that causes your neck muscles to contract involuntarily. This can make your head lean…

  • Man suffering from neck pain and stiffness holds neck

    Cervical Spondylotic Myelopathy (CSM)

    Cervical spondylotic myelopathy (CSM) is a compression of the spinal cord in your neck. A compression means pressure, pinching, or…

  • Toddler with chickenpox lying on stomach

    Chickenpox

    Chickenpox is a highly contagious disease caused by a virus. It once was a common childhood disease until a vaccine…

  • Chlamydia

    Chlamydia

    Chlamydia is a bacterial infection that affects both men and women. It is spread through oral, vaginal, or anal…

  • Lung Symptoms

    Chronic Bronchitis

    Chronic bronchitis is an inflammation in the airways of the lungs that lasts longer than 3 months. It is most…

  • Chronic Cough

    A cough is chronic when it lasts for 8 weeks or more. A chronic cough can be a symptom of…

  • A woman sitting in front of her computer, talking on her cell phone, and yawning

    Chronic Fatigue Syndrome

    Chronic fatigue syndrome is a disease that causes extreme fatigue that lasts for more than 6 months and interrupts daily…

  • Young male patient sleeping in hospital bed while receiving dialysis treatment

    Chronic Kidney Disease (CKD)

    Chronic kidney disease is progressive damage to your kidney that eventually causes it to fail.

  • Chronic Obstructive Pulmonary Disease (COPD)

    COPD is a progressive disease that makes it hard for you to breathe. The two main types of COPD are…

  • woman with a headache holds a hand to her head

    Chronic Pain

    Chronic pain cannot often be cured but it can be treated with lifestyle changes and other means.

  • A woman frowning and grabbing her lower abdomen while sitting on the couch

    Chronic Pelvic Pain

    Chronic pelvic pain can be caused by multiple medical conditions, many of which can be treated or managed with proper…

  • Realistic illustration of cirrhosis of human liver

    Cirrhosis and Portal Hypertension

    Cirrhosis and portal hypertension is a form of liver disease caused by alcoholism, poor diet, or infection.

  • Close up of a child's cleft lip

    Cleft Lip and Cleft Palate

    Cleft lip and cleft palate are birth defects that happen when a baby’s lip or mouth don’t form correctly early…