Having spent a bit too much time in the pocket of my trousers, the name and emblem of my country have been erased from the front of my passport. The relief is still visible if you look at it under a lamp, but at first glance the front is entirely red with no text or graphics. To know what country I live in, you'd have to look at the page opposite the laminated information page.
In addition, the pages are rather ragged, although there are no tears, water damage or similar.
Is my passport now "damaged" enough that I will not be let into countries with strict border guards? It has worked fine for the occasional passport check at airports in Schengen, but I suspect border guards in Turkey or China may be considerably stricter.