I have 2535 photos on my Camera Roll however they will not display

[AC Question]

Facebook and dowload photos do display, could you please help me?

 

[B. Diddy]

Welcome to Android Central! Which device? Using a file manager, can you tell us which directory those photos are in? Are they in /DCIM/Camera? Explore the directory where your photos are, and make sure there isn't a ".nomedia" file hidden in there. If you find one, delete it--that file instructs to the system to ignore images in that directory when looking for ones to add to the Gallery database.