Welcome to the forum Jessie!
It doesn't look healthy. It is unusual for them to shed all of their scutes at one time. When they are shedding, the scute takes a clearish appearance. Your turtle doesn't look like it is shedding. I could be but I doubt it. Here is what I would do:
Make sure the turtle's water is exceptionally clean.
Take a new, extra soft toothbrush and gently wash the shell.
'Walk' the turtle outside on your lawn for about 20 minutes early morning or late afternoon, not during the mid-day hot sun.
Make sure the turtle has a warm basking area.
Provide UVB lighting. Do research to get the right light for your turtle's home. Pay attention to the correct distance from bulb to shell.
Make sure it has a source of calcium.
Pay close attention to what you are feeding the turtle.
By the way, that little guy is very cute!
I’m no expert, but I don’t see typical shedding going on. How old is this turtle? As Stephan said above, proper set up is very much needed. Please clean the shell, and post a close up of the area you are concerned about. I’m not familiar with that species to say if the shell looks right, but all I saw is that it looks a bit dirty, which happens. Tell us about the set up you have, is this an out door pond turtle or kept just indoor?