This lung condition causes low oxygen levels and shortness of breath in people who have advanced liver disease.
Disease
Hidradenitis suppurativa
This condition causes small, painful lumps to form where your skin rubs together. The lumps heal and return and can lead to the formation of tunnels and scarring.
Disease
Horner syndrome
Find out about Horner syndrome, an interruption in nerve signals from the brain to the eye and face on one side of the body.
Disease
Hypereosinophilic syndrome
Hypereosinophilic syndrome is a disorder of certain types of white blood cells that can cause life-threatening damage to your organs.
Disease
Hypoplastic left heart syndrome
Learn more about this rare congenital heart defect that causes the left side of the heart to not develop fully and be small.
Disease
Irritable bowel syndrome
Lifestyle changes can make a big difference when it comes to managing this common GI disorder. Learn more about symptoms, diagnosis and how to handle triggers for this long-term condition.
Disease
Itchy skin (pruritus)
Learn about causes of this common irritating skin condition and which treatments and self-care measures may provide relief.
Disease
Jellyfish stings
Learn more about prevention and first aid for these painful injuries that are common among people swimming in seawater but are rarely life-threatening.
Disease
Kaposi sarcoma
This cancer caused by a virus occurs in people who have AIDS and those with a donated organ who take medicines to prevent organ rejection.
Disease
Keloid scar
Learn about how to prevent, remove or flatten these problematic raised scars that form over scars from acne, tattoos, piercing and other injuries.
Disease
Kidney stones
Learn about the symptoms, risks, causes and treatment of this often intensely painful condition.
Disease
Klinefelter syndrome
In this condition, a genetic male has an extra X sex chromosome. This may affect the growth of testicles and result in low testosterone.