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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 image of a human eye. Diabetic retinopathy is an eye condition that affects people who have diabetes. It can cause blurry vision and progressive vision loss.

    Diabetic Retinopathy

    Diabetic retinopathy is an eye condition that affects people who have diabetes. It affects the retina. A healthy retina is…

  • A woman with diabetes pricks her finger to test her insulin level. Diabetes is a disease that occurs when your body doesn’t make or use the hormone insulin properly. It causes too much blood glucose (sugar) in the blood.

    Diabetes

    Diabetes is a disease that occurs when your body doesn’t make or use the hormone insulin properly.

  • A young woman with depression looks out her car window on a rainy day.

    Depression

    Depression is a mood disorder that affects people of all ages and is different for everyone. A person who has…

  • Chronic Obstructive Pulmonary Disease (COPD)

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

  • Blood Clots

    Blood clots are clumps of blood that form inside your body and can be harmful or even deadly if they…

  • Woman performing breast exam

    Benign Breast Conditions

    A breast cyst is a fluid-filled sac inside the breast. Breast cysts are common in women. They might cause a…

  • Colorectal Cancer

    Colorectal cancer is a cancer of the colon or the rectum that can be detected through early, regular screenings.

  • Women

    Premenstrual Dysphoric Disorder

    PMDD is a severe form of premenstrual syndrome, or PMS.

  • hand holding a lubrication spray can

    Inhalant Use

    Inhalant use is a form of substance use disorder that involves breathing in or sniffing household products on purpose to…

  • Woman holding stomach in pain

    Constipation

    Constipation is a common condition that makes it difficult to have a bowel movement. It can be caused by changes…

  • a mother breastfeeds her baby

    Mastitis

    Mastitis is an inflammation of the breast usually caused by an infection.

  • A close up photo of a woman’s nose and mouth. Nasopharyngeal cancer develops in the nasopharynx, the area where the back part of your nose opens into your upper throat.

    Nasopharyngeal Cancer

    Nasopharyngeal cancer is a malignant tumor that develops in the space between the back of the nose and upper…

  • Illustration of blood vessels

    Transient Ischemic Attack

    A transient ischemic attack is a type of stroke. It is often called a warning stroke because it increases the…

  • Senior woman consults with nurse before chemotherapy. Vulvar cancer most often affects the two skin folds (or lips) around the vagina, known as the labia. If diagnosed early, it is very treatable.

    Vulvar Cancer

    Vulvar cancer is not very common. If found early, vulvar cancer has a high cure rate and the treatment options…

  • 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 photo of a troubled teen meeting with his psychologist

    Oppositional Defiant Disorder

    Oppositional defiant disorder, or ODD, is a behavior condition that affects children and teens. Those who have it are angry,…

  • colleagues wear protective facemasks during a meeting at work

    Mass Psychogenic Illness

    Mass psychogenic illness is sometimes called mass hysteria. It is when a group of people starts feeling sick at the…

  • 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.

  • A toddler wears an oxygen mask. RSV (respiratory syncytial virus) is a common virus that makes it hard to breathe. RSV is common in children under 2, but anyone can get it.

    RSV (Respiratory Syncytial Virus)

    Respiratory syncytial virus (RSV) is a common virus. It affects your lungs, making it difficult to breathe. The virus is…

  • Woman in business clothes holding sinuses in pain

    Sinus Infection (Sinusitis)

    A sinus infection is a condition where the lining of your sinuses becomes inflamed. It can be caused by bacteria…

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