After 10 days of circumcision, hard small things in the foreskin may be the ligation of blood vessels during the operation, may also be the sebaceous cyst of the foreskin. Traditional circumcision requires ligation of the bleeding blood vessels during the operation, and the hard objects touched may be the knots formed by the ligation of the silk threads, which can be absorbed by themselves after a period of time. In addition, after circumcision, the sebaceous glands of the foreskin at the incision can merge with each other and form sebaceous cysts, which do not require treatment if there are no obvious symptoms. 10 days after the operation, before the current is still in the edema period, you can first temporarily observe to see, if there is no obvious elimination, and more and more large, you can consider going to the hospital, if necessary, surgical resection.