The child has been playing and being fussy for several days now. He's …

The child has been playing and being fussy for several days now. He's ready to bite everything. He cried last night and today as well. I think it might be his teeth. I looked at his gums and they aren't smooth, but rather rough and worn-down like that. They're also red on both sides. If they are like this, then his teeth will come out soon. Or could they become normal and still not come out?