A cyst is a sac of tissue containing fluid or air that can form in many areas of the body. Cysts often do not need to be removed unless they are causing pain or other problems. There are several ...

Acanthamoeba keratitis is a rare but blinding parasitic eye disease. Experts share how to avoid it and treat it.

Boils are painful, pus-filled, and are caused by infections like Staphylococcus aureus. Cysts are painless, non-infectious growths filled with keratin or other substances. Antibiotics may treat boils ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

I had one removed from my head when I was about eight-years-old and didn't have another until two years ago. Now I have three that have come up on my head beneath my hair.

H. pylori bacteria can disrupt your stomach's protective lining and cause peptic ulcers. You can treat H. pylori infections with antibiotics and medications that lower acid to prevent complications. H ...