Alzheimer's caregiver
Learning Center
Klippel-Trenaunay syndrome
Main signs of this congenital disorder involve a red birthmark (port-wine stain), vein malformations, and overgrowth of tissues and bones.
Klinefelter syndrome
This genetic disorder occurs when a male is born with an extra copy of the X chromosome and may result in low testosterone production and infertility.
Inherited metabolic disorders
Caused by gene changes, these disorders affect the body's ability to change food into energy. They also affect how energy is used, such as for cell repair.
Infectious diseases
Viruses, bacteria, fungi and parasites can all cause infection. Find out more about how to prevent and treat these conditions.
Infant reflux
Learn more about when a baby spits up food or liquid. Most babies outgrow this common and messy condition by the age of 18 months.
Infant jaundice
Learn about this common condition in newborns, especially those born preterm. With close monitoring and light therapy, complications are rare.
Hypospadias
This condition happens before birth. The opening of the urethra is on the underside of the penis instead of at the tip. Learn about treatment.
Hypoplastic left heart syndrome
Learn more about this rare congenital heart condition that results in underdevelopment of the left side of the heart.
Hydronephrosis
Learn about this condition that occurs when urine doesn't drain properly from the upper urinary tract, leading to kidney swelling.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
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