He has some yellow spots inside his mouth (which you can see in the pictures). I’ve also noticed some of his teeth were somehow deteriorated or too small... I’m not sure. And one was actually missing. You can also appreciate at the tip of his mouth his cups are covered in some crusty mucous which has dried up. The white is calcium and the brown is due to an environmental factor. They (of course) disappear when shedding the lips, but always come back. He has been like this for a while and he is always the reptile he always has been: which a big appetite, always willing to drink and eat. Tho he hasn’t been basking lately.