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Diseases & Conditions

Kleptomania

If you have this impulse control disorder, you can't resist urges to steal items that…

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Klinefelter syndrome

In this condition, a genetic male has an extra X sex chromosome. This may affect…

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Klippel-Trenaunay syndrome

Main signs of this congenital disorder involve a red birthmark (port-wine stain), vein malformations, and…

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Knee bursitis

This condition involves painful swelling of a small fluid-filled sac near the knee joint. It…

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Knee pain

Learn about this common complaint, which can result from an injury or medical condition, and…

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Knee pain: Symptom

Knee pain: Symptom — Overview covers definition, possible causes of knee joint pain.

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Knee replacement

Knee replacement surgery can relieve pain and restore function to a knee joint that's seriously…

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Kombucha tea: Does it have health benefits?

Does kombucha tea live up to its reputation as a health tonic?

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Kratom for opioid withdrawal: Does it work?

Kratom is promoted as an aid in overcoming withdrawal from opioid medications, but research suggests…

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Kratom: Unsafe and ineffective

Users claim kratom lifts mood and boosts energy, but there are many safety issues and…

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Kyphosis

This excessive forward rounding of the back is often caused by osteoporosis in older women.…

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L-arginine

Understand how L-arginine affects blood vessels and when to avoid using this supplement.

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L-arginine: Does it lower blood pressure?

This supplement may help some people lower their blood pressure. Learn who might benefit and…

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Labor and delivery: Pain medications

Understand the pros and cons of various labor and delivery pain medications.

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Labor induction

Know what to expect during this procedure to start labor before it begins on its…

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Labor positions

Learn about positions that might help you relax and ease pain during labor.

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Lack of sleep: Can it make you sick?

Not getting enough sleep can affect your immune system. Here's what you need to know.

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Lactose intolerance

Tummy upset after that milkshake? Not being able to fully digest the lactose in dairy…

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Laminectomy

Removing the rear part of a vertebra, called the lamina, makes extra space in the…

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Language development: Speech milestones for babies

Get the facts about how baby learns to speak.

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Laryngitis

Learn about the symptoms, causes and treatment for this common swelling of the voice box.

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Laryngospasm: What causes it?

Laryngospasm is a brief spasm of the vocal cords, which temporarily interrupts breathing.

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Laryngotracheal reconstruction

This surgery widens the windpipe or voice box to make breathing easier. Learn why it's…

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Larynx and trachea transplant

A larynx or trachea transplant may help people who have severe damage to their throat.…

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Laser hair removal

Laser hair removal uses a concentrated beam of light to reduce unwanted hair long term.

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Laser resurfacing

Explore your options and learn what to expect from this treatment to improve the appearance…

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LASIK eye surgery

Learn about this common type of laser eye surgery to correct vision problems and what…

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LASIK surgery: Is it right for you?

Find out whether you're a good candidate for vision correction with laser surgery.

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Late-night eating: OK if you have diabetes?

Late-night snacks may be OK with diabetes. Make healthy choices to keep from having high…

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Latent autoimmune diabetes in adults (LADA): What is it?

Latent autoimmune diabetes in adults (LADA) is a slow-developing form of diabetes.

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