Circumcision especially on infants is a very difficult thing to get just right the infant penis is minute but the effect of any mistakes blow up like writing on a ballot. so there are many instances where botch ups have to be fixed or revised with specially devised instruments.
It depends on who is performing the procedure. If a medical doctor is performing the procedure, then yes it will be as sterile as possible with clean instruments, surgical gloves, etc. If a religious authority is performing it (rabbi, etc.), it is probably not a sterile procedure.
Surgery can extend, but the surgical procedure that does it is not called circumcision.
Myomectomy instruments
Revision surgery is done due to stiffness after TKR.
You should consult a urologist. He or she will either be able to perform the circumcision or refer you to a colleague who performs the procedure.
Having more foreskin removed.
Circumcision is generally not covered by health insurance as it is not a medically necessary procedure. Depending upon the type of anesthesia used, the procedure may cost anywhere between $500 and $2500.
Circumcision has to be performed in a clean, sterile environment, with clean, sterile instruments. Without it, you run the risk of serious infection and even death.
A circumcision revision is when a change is made to an already circumcised foreskin. Often this means that either not enough skin was removed, so more skin is removed, or that the initial cut healed unevenly or was badly done to begin.
It is called a revision and usually has a number or date. Example: Procedure for Applying Paint, Rev. 2
Advocates of circumcision claim it prevents infections (called balanitis ) on the head of the penis and reduces chances of penile cancer.
This is a surgical procedure Urologists do, not something you do yourself. The majority of circumcision in the world are not done by urologist but are done by people with no medical training at all.