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Diseases & Conditions

Isometric exercises: Good for strength training?

Learn more about isometric exercises that contract a particular muscle or group of muscles.

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Itchy skin (pruritus)

Learn about causes of this common irritating skin condition and which treatments and self-care measures…

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Jaw surgery

Crooked jawbones or jawbones that are not even can be corrected with surgery to line…

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Jaw tumors and cysts

Also called odontogenic tumors and cysts, these typically benign lesions develop in the jawbone or…

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Jellyfish stings

Learn more about prevention and first aid for these painful injuries that are common among…

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Jet lag disorder

Jetting across time zones can take a toll on your body's internal clock. Find out…

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Job burnout: How to spot it and take action

Stress on the job can affect your physical and mental health. Know the signs and…

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Jock itch

Learn more about this common, treatable fungal infection that causes an itchy rash in the…

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Joint pain

Pain in a joint can be a symptom of many illnesses. Most often it's caused…

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Joint protection for people with hand arthritis

Joint protection — photos showing joint protection techniques to avoid hand arthritis pain.

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Juicing: What are the health benefits?

Learn about the pros and cons of extracting the juice from fresh fruits and vegetables.

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Juvenile idiopathic arthritis

Learn about this type of arthritis that affects children and can cause growth problems, joint…

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Kaposi sarcoma

This cancer caused by a virus occurs in people who have AIDS and those with…

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Kawasaki disease

Learn more about this condition that primarily affects young children and causes inflammation in the…

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Kegel exercises: A how-to guide for women

Find out how to strengthen your pelvic floor muscles.

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Kegel exercises for men: Understand the benefits

Men can benefit from these exercises. Follow these tips to strengthen your pelvic floor muscles.

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Keloid scar

Learn about how to prevent, remove or flatten these problematic raised scars that form over…

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Keratitis

An inflamed, red eye can be a minor nuisance — but sometimes it means a…

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Keratoconus

When your cornea bulges outward, it can cause blurry vision and make your eyes sensitive…

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Keratosis pilaris

Find out more about this harmless, nonpitch skin condition that causes bumpy, rough skin on…

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Keyhole craniotomy

This minimally invasive brain surgery technique uses small incisions for tumor removal, aneurysm clipping, epilepsy…

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Kidney biopsy

During a kidney biopsy, doctors remove a small piece of kidney tissue to view under…

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Kidney cancer

Learn about the symptoms, diagnosis and treatments for this type of cancer that begins in…

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Kidney cysts

These round, fluid-filled pouches on or in the kidneys are sometimes discovered during imaging tests.…

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Kidney dialysis: When is it time to stop?

Many factors may influence the decision to withdraw from kidney dialysis.

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Kidney donation: Are there long-term risks?

Kidney donation can save a life, but it's important to understand the risks.

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Kidney infection

A urinary tract infection that travels to the kidneys can be dangerous. Know the symptoms…

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Kidney pain

Find out how this type of pain may feel and what health problems can cause…

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Kidney stones

Learn about the symptoms, risks, causes and treatment of this often intensely painful condition.

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Kidney transplant

Find out about the different types of kidney transplants — surgeries that are done to…

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