Bamboos can become very large plants. It amazes me when I see these plants recommended, so often, in TV programs.
When a bamboo shoot is cut, it behaves in a strange way. What often happens is that the plant will send out new shoots, at the top of the cut stem, but these will grow outwards (amost horizontally), and not upwards, as you expect with most plants. So the plant ends up looking something like an opened umbrella. If you want to keep the natural appearance of a bamboo then it's best to remove any unwanted shoots at the base.
This is a pile of canes I cut down last weekend...
The cut canes are very useful. I put some through a shredder; they make a good material for making natural paths. And you can also use some as garden canes, for supporting other plants.