Does a salpingo oophorectomy involve a blood transfusion?

Usually not: In most cases no unless you are very anemic to start or there is excessive bleeding during the surgery. In most cases no.

Rarely: Salpingo-oophorectomy is a common and safe surgical procedure usually done via minimally invasive (laproscopic) techniques. It is safe and in the absence of bleeding tendencies, coagulopathies or other diseases of the abdomen or pelvis, bleeding is not a common problem.