is a rare form of extragenital endometriosis. It accounts for only about 0.5% to 1% of all cases of endometriosis. When endometrial tissue implants itself in the belly button (navel), it forms a nodule, historically known as a Villar’s Nodule .
This cyclical bleeding—occurring in sync with the menstrual period—is the hallmark "classic" presentation of umbilical endometriosis. The tissue inside the navel behaves exactly like the tissue inside the uterus: it builds up, breaks down, and bleeds in response to hormonal changes. Because there is nowhere for this blood to go inside the navel, it causes swelling, inflammation, and eventually, discharge. navel endometriosis
Navel endometriosis is a rare but manageable condition. If you notice cyclic pain, swelling, or bleeding at your belly button, it is important to consult a specialist who understands extragenital endometriosis. Early diagnosis and radical excision can provide a long-term, disease-free outcome. is a rare form of extragenital endometriosis
Following the surgery, the pathology report confirmed it was endometrial tissue. For the first time in years, Elena’s navel stopped bleeding, and the cyclical pain vanished. Navel endometriosis is a rare but manageable condition
The nodule may appear black, dark purple, or brownish-red.
Clara never got her old navel back. In its place was a pale, straight line. She would look at it sometimes in the bath, the water rippling over the scar. It was a reminder of a strange, quiet war fought in a tiny, forgotten corner of her body. A war she had won by refusing to be a ghost in her own story.
Over the next year, Clara became a detective of her own strange navel. The bleeding was cyclical, she realized with a growing, queasy horror. It arrived like clockwork, a day before her period. And it hurt—a deep, cramping, familiar pain. The kind of pain that belonged in her uterus, not two inches above it.