4mm gallbladder polyp discovered on ultrasound last year. just did a follow up and it is now 6mm. what is the significance of this?

Gall bladder polyp: It's recommended to follow the polyp by ultrasound every 6 months. Surgical removal is recommended if the polyp reaches 10 mms. There are no guarantees that smaller ones aren't malignant or that larger ones are or will become malignant. I recommend that an experienced abdominal surgeon advise you, be involved in your care and follow-up.