29/10/2025
In the womb, a baby's bladder connects to its belly button through a channel called the urachus in the abdominal wall gut. If it doesn’t close by the time you're born, a small lump of tissue and fluid (a cyst) can grow there. If it gets infected, you could have belly button pain, fever, and bloody urine. Your doctor may give you antibiotics, drain or remove the cyst, and possibly repair the area with surgery.