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 ...

Incomplete sealing of the urachus — a line of connectivity between a fetus and the umbilical cord — can cause a urachal cyst to develop. It can lead to abdominal pain and other symptoms and often ...

Belly button infections can lead to sepsis, a life-threatening condition, if untreated. Symptoms of an infection include redness, tenderness, pain, swelling, and possible discharge. Newborns with ...