Redfoot Tortoise Plastron chipping?

Hello, I have a redfoot I got about 2 months ago from a lovely couple who couldnt care for him, His name is Paco, I believe he could be about 10 years old. Approx, 7-8 inches long.
He eats well, poops well, soaks and drinks and pees well. He has started coming out and being social with me a few weeks ago.
Just the other day I took notice of these areas on his belly. I dont know if they were there when I got him and I just never noticed, or if they are recent. It appears as if its been chipped at. I have found absolutely no little chipped off pieces anywhere.
SO..What is it? is he okay? Im a worrier by nature and usually blow things out of proportion but I know redfoots are more prone to shell rot so I thought id ask. His shell is otherwise lovely as you can see in the first two photos... =( Help please!!

One other picture

hard to tell from the photos but it looks like it could be either scarring from what was shell rot or it could be active shell rot; looks more like scars to me though (again hard to tell from photos).
if pieces are easily flaking out from the edges of the area and smell a little like athlete's foot, it is likely active rot;
if the areas are hard and have the same fingernail feel as the rest of the shell then it is probably scarring.

The best bet would be to have a vet check it.
These types of conditions are not extremely urgent so you can research a good vet, but sooner would be better.
Be absolutely sure that the vet you take him to knows what he/she is doing with tortoises as they are more sensitive to some treatments than other reptiles.

Shell fungus is usually caused by unsanitary conditions and/or excessive moisture.
keeping the cage clean and not too damp will help a lot. Do not try to use any anti-fungals without first consulting a vet (or a highly reputable tortoise breeder).

Originally Posted by j_dunlavy

hard to tell from the photos but it looks like it could be either scarring from what was shell rot or it could be active shell rot; looks more like scars to me though (again hard to tell from photos).
if pieces are easily flaking out from the edges of the area and smell a little like athlete's foot, it is likely active rot;
if the areas are hard and have the same fingernail feel as the rest of the shell then it is probably scarring.

The best bet would be to have a vet check it.
These types of conditions are not extremely urgent so you can research a good vet, but sooner would be better.
Be absolutely sure that the vet you take him to knows what he/she is doing with tortoises as they are more sensitive to some treatments than other reptiles.

Shell fungus is usually caused by unsanitary conditions and/or excessive moisture.
keeping the cage clean and not too damp will help a lot. Do not try to use any anti-fungals without first consulting a vet (or a highly reputable tortoise breeder).

its definitely hard an not flaking away or chipping. i had started to test it by scrubbing with a soft toothbrush in the bath and then tried my fingers... its not flaky in any way. His shell is also hard in all spots in general. I had a few others say it looks like scarred/healed rot. I do have a vet in cue (did my research before even getting him) but didnt want to take him in if i was overreacting, im good at that haha.
Thank you for your input!