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An anorectal abscess is a collection of pus under the skin in the area of the anus and rectum.

Portal hypertension is high blood pressure of the portal vein, which is in your abdomen (belly). It collects nutrient-rich blood from your intestines and carries it to the liver for cleaning.

Hearing aids can help improve hearing and speech, especially in children with hearing loss in the inner ear caused by damaged hair cells or a damaged hearing nerve. Read on to learn about the types of hearing aids available, and what to think about before buying one.

Are you ready to start thinking about a younger sibling for your baby? If so, here’s what you need to keep in mind before you prepare to keep growing your family.

Did you have chickenpox or get the vaccine as a child? Then you've got nothing to worry about from varicella. But if you didn't, you may not be immune to this infectious disease that can cause complications for a pregnant person and their baby. Read more to find out why, and how to protect yourself.

Pneumococcus bacteria can cause serious illness in children, including pneumonia, infection in the blood, and meningitis.

The poliovirus destroys the nervous system, causing paralysis. Today, polio is extremely rare in the United States because of the polio vaccine. It's still common in other countries, though, so children still need to be immunized.

Critical limb ischemia (CLI) is a condition that can occur over time when your leg arteries are damaged. Learn when to get emergency care, and how CLI is diagnosed and treated.

Acute arterial occlusion is a serious condition that occurs when blood flow in a leg artery stops suddenly. Read on to know what symptoms to look for, and when to get medical care.