A bit of my scab from my tattoo came off and there is no colour underneath?

For a start i have load so tattoo's and i never put cream on them because it scabs longer. Your better to leave it. Secondly sometimes with black ink you can't see it properly until all the scab comes off, don't know why just happens, on the other hand it may mean it has lifted some of the colour out you will have to wait and see im afraid