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Iron deficiency in children: Prevention tips for parents

Learn how much of this key mineral your child needs and what the health risks…

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Irritable bowel syndrome

Lifestyle changes can make a big difference when it comes to managing this common GI…

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Is a home sperm test useful?

Checking fertility at home may not give a clear answer.

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Is depression a factor in rheumatoid arthritis?

Depression is common in people with rheumatoid arthritis. If it isn't treated, depression may contribute…

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Is hydroxychloroquine a treatment for COVID-19?

Hydroxychloroquine does not treat coronavirus disease 19 (COVID-19) or prevent infection with the virus that…

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Ischemic colitis

Ischemic colitis happens when a part of the colon has a decrease in blood flow.…

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Isolated systolic hypertension: A health concern?

Both the top and bottom numbers in blood pressure readings hold clues about your health.…

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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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