I have an Indian passport. There was a sticker on the back cover. Carelessly I used wet wipes to clean it out, which caused slight discoloration on the back but did not weaken the cover.
The cover is intact but, due to rubbing, 2-3 tiniest of tiniest holes occurred. That did not affect anything inside, and they are very tiny - only when I face it to direct light can I see the tiny holes.
The back of the back of cover has general information about the passport, and it is readable. Everything inside is intact and unaffected.
Should I be worried?