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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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  • Cytomegalovirus

    Cytomegalovirus (CMV) is a common virus that most people are exposed to as infants. It rarely causes symptoms, but sometimes…

  • Woman holds her wrist in pain

    De Quervain’s Tenosynovitis

    De Quervain’s tenosynovitis is a painful condition that affects the tendons in your wrist.

  • Close up shot of woman wearing deep vein thrombosis stockings on her feet

    Deep Vein Thrombosis

    Deep vein thrombosis is a blood clot that occurs in your leg veins. It can break off and travel to…

  • Illustration of human brain with puzzle piece missing, depicting memory loss as a symptom of dementia

    Dementia

    Dementia is a group of symptoms often caused by changes in brain structure. It often occurs in older people but…

  • 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…

  • 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 fourteen year old Caucasian girl reads her blood sugar level by placing her cellphone next to her pump in her arm as she sits at a dining table.

    Diabetes in Kids - Signs and Causes

    Diabetes is a chronic condition that occurs when your child’s body doesn’t’ make or use insulin properly. There are two…

  • Middle-aged woman drinks a glass of water in the living room. Diabetes insipidus is a hormone disorder that causes extreme thirst and increased urination. It can be treated with medication.

    Diabetes Insipidus

    Diabetes insipidus is a hormone disorder that causes extreme thirst and increased urination. There is no cure, but it can…

  • gloved hands holding a ketone test strip for a urine analysis

    Diabetic Ketoacidosis

    Diabetic Ketoacidosis is a serious condition related to diabetes and fatal if not properly treated.

  • Image showing normal kidney and one with diabetic nephropathy

    Diabetic Nephropathy

    Diabetic nephropathy is a complication of diabetes that affects the kidneys.

  • Image of a foot massage for diabetic neuropathy

    Diabetic Neuropathy

    Diabetic neuropathy is a type of nerve damage that happens in people who have diabetes. It can cause changes in…

  • 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…

  • an infant lies on her back without a diaper

    Diaper Rash

    Diaper rash is redness and rash on a baby’s bottom or genital area. It is a very common rash. Normally,…

  • Diverticular disease is a group of conditions (diverticulosis, diverticulitis and diverticular bleeding) that affect your large intestine (colon).  

    Diverticular Disease (Diverticulitis)

    Diverticular Disease is a group of conditions that affect your large intestine (colon).

  • a young girl with Down syndrome looks up and smiles

    Down Syndrome

    Down syndrome is a chromosomal disorder that affects physical and intellectual development.

  • Woman suffering from menstrual cramps holds her stomach while sitting on couch. Dysmenorrhea is the medical term for pain that women have before or during menses (known as their period). It usually is not serious.

    Dysmenorrhea

    What is dysmenorrhea? Dysmenorrhea is the medical term for pain that women have before or during menses (known as their period). It usually is not serious. Symptoms of dysmenorrhea Menstrual cramps can feel like a dull ache or a shooting pain. They most often…

  • Woman holds abdomen in pain. Dyspareunia is painful sex for women. Also, it causes pain during tampon use.

    Dyspareunia

    Dyspareunia is a medical term used to describe painful sex for women.

  • Senior man holds his hand to his throat in pain

    Dysphagia

    Dysphagia is a swallowing disorder that can result from multiple causes.

  • E. coli Infection

    E. coli are germs that are found on food and in the environment. When ingested, E. coli cause severe cramps…

  • Doctor examining patient’s ear with otoscope

    Ear Infection

    An ear infection is one of the most common conditions among children. It is caused by a viral or bacterial…

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