Building muscles at the gymWatch this thread
If you're still considerably sore... I mean, you could still train, and it will probably make the soreness feel better after you've warmed up. But the point of training is to improve your performance. Even if you just want to build muscle, you do this by improving what your muscles can handle over time. If you're still sore, you're not fully recovered. Your muscles will still be carrying fatigue from your last workout and not had the chance to adapt fully. This will definitely negatively impact your next work out. So yeah, you could train. But no, it won't be optimal. After a couple of weeks of consistent training you won't be feeling sore too much anyway.
If you really want to do something in the gym, you can just train parts of your body that aren't sore.
Do you have to wait until your muscles don't ache anymore to train again? Do the muscles need more time to strengthen or is it okay to train again 2 days later even though you're aching a bit still
I won’t lie, I still train regardless of the ache or not.