This is a relatively complicated medium to high level topic.

If you've got the time watch this VOD review by Wickd of Jax vs a Yorick as he explains some of the thought process around pushing early.




One way to think about it is if you are Top and your jungler starts Bot side then you don't want to push your lane early because your jungler is going to hit level 3 while they are near to your lane.

By holding back on pushing the wave this gives you another tool for setting the course of your lane...
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