Thank you for the query.
If you have any discharges from this area, most probable reason of it is urachus. This is a natural connection between the urinary bladder
which should get occluded after birth. But sometimes it does not causing urine discharges from the belly button, inflammations. It can also give more frequent urinary tract
infections. The best treatment for it is to remove it. You should visit general surgeon
If this is not urachus, I suggest you to have abdominal CT which will be more accurate and should tell where does this cyst
Hope this will help.