Sorry...not been ard for a while...can pm me if you have urgent
questions.
Depends on what sort of tumours. Cancer of the ovaries can
certainly be fatal and tends to be detected late. If you are
concerned about pregnancy, I presume you are referring to a young
person. Ovarian cancer tends to occur in older patients.
If it is a benign cyst (e.g. serous cystadenoma), it is easily
removed and should not affect the chances of pregnancy if the
procedure is successful. On the other hand, if the 'tumour' is say,
an endometriotic cyst, then there could be problems with pelvic
adhesions and tubal blockage due to the endometriosis itself.
Surgery can actually help to lyse the adhesions and burn off the
endometriotic spots. Hormonal treatment will be necessary to
control the underlying disease.
If it is cancer, then pregnancy is the last of your worries.