Early treatment for recurrence

My CA125 has doubled. It is still within normal (15), but my first recurrence it doubled (also to 15), CT showed nothing definitive and I then had PET/CT which lit up and treatment began.  Rather than fight with the insurance about the PET scan, I am considering continuing the "watch & wait", but am wondering if it is crucial to begin treatment as soon as recurrence is confirmed or wait for symptoms.

[Annekathryn Goodman, M.D.]

Dear Jolene,
it is reasonable to watch and wait. There is no data to suggest that starting treatment again before it is possible to see a recurrence improves survival
please let us know how things go
best wishes