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Your digestive or gastrointestinal (GI) tract includes the esophagus, stomach, small intestine, large intestine or colon, rectum, and anus. Bleeding can come ...
Gaucher disease is a rare, inherited disorder. It is a type of lipid metabolism disorder. If you have it, you do not have enough of an enzyme called glucocerebrosidase. ...
What are genes? Genes are sections of DNA in your cells that are passed down (inherited) from your parents. You inherit two copies of each gene, one from ...
A genetic brain disorder is caused by a variation or a mutation in a gene. A variation is a different form of a gene. A mutation is a change in a gene. ...
Genetic counseling provides information and support to people who have, or may be at risk for, genetic disorders. A genetic counselor meets with you to discuss ...
What are genetic disorders? Genetic disorders are health conditions caused by changes (also called mutations or variants) in your genes. Genes are parts ...
What is genetic testing? Genetic testing is a type of medical test that looks for changes, sometimes called variants or mutations, in your DNA. DNA contains ...
Genital herpes is a sexually transmitted infection (STI) caused by a herpes simplex virus (HSV). It can cause sores on your genital or rectal area, buttocks, and ...
What are genital warts? Genital warts are a sexually transmitted infection (STI) caused by the human papillomavirus (HPV). There are many types of HPV. ...
What is GERD? Sometimes, after eating a large meal or lying down too soon after eating, you might feel acid coming up into your throat. This is called ...
What are germs? Germs are microorganisms. This means that they can be seen only through a microscope. They can be found everywhere - in the air, soil, and ...
Giant cell arteritis is a disorder that causes inflammation of your arteries, usually in the scalp, neck, and arms. It narrows the arteries, which keeps blood ...
Giardiasis is an illness caused by a parasite called Giardia intestinalis. It lives in soil, food, and water. It may also be on surfaces that have been contaminated ...
What is glaucoma? Glaucoma is a group of diseases that can damage the optic nerve of one, or both, of your eyes. This can result in vision loss. There ...
The spread of a disease doesn't stop at a country's borders. With more people living in crowded cities and traveling to other countries, it's easier for ...
Gluten is a protein found in wheat, rye, and barley. It is found mainly in foods. But it may also be in other products like medicines, vitamins, and supplements. ...
Gonorrhea is a sexually transmitted infection (STI). It is most common in young adults. The bacteria that cause gonorrhea can infect the genital tract, mouth, or ...
What is gout? Gout is a common type of inflammatory arthritis. It causes pain, swelling, and redness in one or more joints. It usually happens as a flare, ...
Granulomatosis with polyangiitis (GPA), previously known as Wegener's granulomatosis, is a rare disease. It is a type of vasculitis, or inflammation of the blood vessels. ...
Does your child seem much shorter - or much taller - than other kids his or her age? It could be normal. Some children may be small for their age but still be ...
