I've been experienced bloody belly button discharge lately. It's the 4th time it has happened. Every time it goes away after a few days. My Sonography report tells "An ill-defined hypoechoic area is noted deep in umbilicus with a thick walled tract reaching upto skin. It measures approx 1.9 × 1.0 cm. Evaluation of this area is suboptimal due to artifacts caused due to significant air. Small intraabdominal component is noted. There is no deep/inferior extension"