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In iron-deficiency anemia, the cause of anemia is not having enough iron in the body. Learn more about this condition, from symptoms and diagnosis to treatment and prevention.

Tongue-tie (ankyloglossia) is a problem with the frenulum, the thin strip of tissue under the tongue. It connects from the underside of the tongue to the floor of the mouth. Some children are born with a frenulum that is too short and tight. This can cause problems with speech and eating.

Trabeculectomy is a type of eye surgery done in the front part of the eye. It’s done to treat glaucoma by draining some fluid from the eye. This helps to lower pressure inside the eye.

You have diabetic retinopathy. This condition happens when diabetes harms blood vessels in the back of the eye. It can cause cloudy eyesight and other problems. But surgery called vitrectomy may help you see more clearly.

An uncircumcised penis still has the foreskin attached. Caring for your newborn's penis is fairly easy. Here are things to keep in mind.

A diagnosis of cancer for your child is scary and confusing. Learn the basics about acute lymphoblastic leukemia.

Angiotensin receptor blockers (ARBs) are medicines. They are most often prescribed to treat high blood pressure, but they can be used to treat other conditions. This sheet tells you how ARBs work and how to use them effectively.

Urethritis occurs when the urethra is red and swollen (inflamed). This is the tube that passes urine from the bladder to outside the body. The urethra can become swollen and cause burning pain when you urinate, pain with sex, and other symptoms.

The tonsils are 2 small masses of tissue at the back of the throat. They are part of the body's immune system, which helps the body fight disease. In some people, the tonsils become infected or enlarged. This can cause severe sore throats, snoring, or other problems. Tonsillectomy is surgery to remove the tonsils.