Skin care
Learning Center
Unusual COVID-19 symptoms: What are they?
COVID-19 can cause a wide variety of symptoms, some more common than others. Learn about how COVID-19 can make you feel.
Unexplained weight loss
Unexplained weight loss has many causes — some serious. Find out when losing weight without trying calls for a medical evaluation.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Ulcerative colitis
This type of inflammatory bowel disease affects the innermost lining of your digestive tract. Learn about available treatments for this often exhausting condition.
Types of psoriasis
Learn to identify types of psoriasis, such as guttate psoriasis and scalp psoriasis, by appearance.
Types of dermatitis
Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
Type 2 diabetes in children
More children are being diagnosed with this blood sugar condition. Learn how to help manage or prevent this chronic disease in your child.
Type 1 diabetes in children
Know what symptoms to look for, as well as more about diagnosis, treatment and daily living with this lifelong insulin-dependent condition.
Type 1 diabetes
Learn about the symptoms, causes, treatment of this chronic condition in which the pancreas produces little or no insulin.
Turner syndrome
Turner syndrome affects only females as the result of a missing or partially missing X chromosome, causing a variety of medical and developmental problems.
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