Rig having more bones than normal? Blender

Hey so i made my character a rig and i exported it as a fbx and re imported it to see if it would work and still function but i got something diffrent


The one on the left is the normal one that i just finished and exported the one on the right is the one that i imported back in to test and as you can see theres extra bones as seen here

Please let me know on how to fix this!