1 1mm*9mm Is the gallstone big? What kind of gallstones need surgery?

Your stone is only 1cm in size, very small, not big, as long as it doesn't hurt, no surgery is needed. Gallbladder stones are difficult to remove by taking medicine and can only be controlled not to increase. This is a minor illness, so don't be nervous. If you have to have an operation, you can go to the hospital for consultation by drilling holes. I wish you a speedy recovery!