I had an emergency cs with painted toenails and had had an epidural in for the two days prior to the section and the varnish was left on and it was bright red so fairly obvious. I asked my SIL, a nurse, about this and she said they'd probably remove finger nail varnish but no need to remove from toes. Best to check with your midwife I'd say.
i had ELCS and kept my polish. the theatre midwife even commented on how beautiful the pedicure was! i have also had an ERPC under GA and was able to keep polish for that too. maybe depends on hospital so may be best to ask your midwife. good luck!
I had an EMCS and I was able to keep my toe polish on but had to remove my nail polish. Could have easily done it the other way around, they said they just needed one or the other. But if yours is elective I might wait until after the birth to have one.