www.nhs.uk/conditions/contraception-guide/pages/female-sterilisation.aspx
Sorry for weird looking link - I'm on my phone.
Is this true?? 1 in 200 women fall pregnant after sterilisation? That's awful! Surely it would be easier just to remove the whole ovary or tube to be sure? I'm not a doctor (can you tell
), so maybe (probably) I'm misunderstanding.