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Truncus arteriosus

Learn more about this congenital heart defect that makes it difficult for the heart to…

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Tubal ligation

Thinking of getting your tubes tied? This surgery offers a permanent form of birth control.…

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Tuberculosis

Learn about the prevention and treatment of this disease that causes serious illness around the…

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Tuberous sclerosis

This uncommon genetic disorder causes tumors that are not cancer. These tumors are unexpected overgrowths…

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Tubular adenoma of the colon

This type of colon polyp can eventually become cancerous if it's not removed. Learn about…

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Tummy tuck

Find out how this surgery can change the appearance of your abdomen, giving you a…

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Tumor vs. cyst: What's the difference?

A Mayo Clinic expert explains the differences and similarities between these two types of growths…

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Turner syndrome

Turner syndrome affects only females as the result of a missing or partially missing X…

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Twin pregnancy: Getting ready for twins or multiples

Twin pregnancy or other multiples? Here's help taking care of yourself — and your babies.

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Type 1 diabetes

Learn about the symptoms, causes, treatment of this chronic condition in which the pancreas produces…

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Type 1 diabetes in children

Know what symptoms to look for, as well as more about diagnosis, treatment and daily…

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Type 2 diabetes

Managing blood sugar levels are vital for this condition. Learn about lifestyle changes to lower…

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Type 2 diabetes in children

More children are being diagnosed with this blood sugar condition. Learn how to help manage…

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Types of dermatitis

Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis,…

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Types of prostate cancer: Common and rare forms

Learn about the types of prostate cancer, including the symptoms, diagnosis, aggressiveness and treatment for…

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Types of psoriasis

Learn to identify types of psoriasis, such as guttate psoriasis and scalp psoriasis, by appearance.

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Typhoid fever

Learn more about the symptoms, cause and treatment of this serious bacterial infection.

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Ulcerative colitis

This type of inflammatory bowel disease causes swelling and sores in the digestive tract. Learn…

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Ulcerative colitis flare-ups: 5 tips to manage them

These diet and lifestyle changes may help control ulcerative colitis symptoms and lengthen the time…

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Ulnar wrist pain

Ulnar wrist pain occurs on the side of your wrist opposite your thumb. The pain…

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Ultrasonido

This imaging method uses sound waves to create pictures of the inside of your body.…

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Umbilical cord care: Do's and don'ts for parents

Find out how to keep the area clean and dry, and when to call the…

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Umbilical hernia

Learn about this condition in which your intestines create a bulge near your navel.

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Uncircumcised penis: Is special care needed?

Know how to wash and care for your child's uncircumcised penis.

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Underweight? See how to add pounds healthfully

If you're underweight and not happy about it, try these tips to help you achieve…

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Undescended testicle

Learn about causes, complications and treatment of this condition in which one or both testicles…

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Undifferentiated pleomorphic sarcoma

Learn about this cancer that most often happens in the soft tissues of the arms…

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Undigested food in stool: What does it mean?

Undigested food in stool generally isn't a problem unless it's accompanied by other symptoms.

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Unexplained weight loss

Find out when losing weight without trying calls for a medical appointment.

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Universal blood donor type: Is there such a thing?

Type O negative is the blood type most often given to people who need donated…

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