Apple tree trunk

Hi
I have a fiesta apple tree it's trunk as Seen in picture has looked like this for a couple of years we used th o have a cat is this healing damage from cat or is it the dreaded canker ? Thanks in adance

 

I'd say scars from being used as a scratching post Do you prune it at all? If you do and the branches show dark inner staining, that's an indication of disease.

 

I'd say its healed itself.

 

Doesn't look like canker, rather it's woundwood from previous bark damage.

 

It's not canker, it would be leaking with sticky thick liquid.
We had it on our cherry tree and it's recovered from it.

 

I don't think it's anything to worry about either, it's growing new bark and looks quite healthy. In the old days gardeners would sometimes remove a strip of bark halfway round the tree if it was growing too vigorously and that would be much worse than what yours has. This would be in the days when you didn't get dwarfing rootstocks.