Greek Letters using LaTex canceling out rest of line

I’m trying to label my y-axis with “delta DBH”. When I use $\Delta $ DBH, it cuts off the “DBH” and only displays the “delta.” Any thoughts? I can also put text in front of the LaTex command and it won’t display that either. Thanks in advance.

For LaTeX and axes labels, they have to be 100% LaTeX. So try $\Delta DBH$

Fantastic. Thanks, jack!

An improvement on this answer is that text needs to have the \text tag in front. This is important if you want to have spaces in between words or characters. For example: $\text{Log } \eta_{N}$

Great. This clears things up even more. Exactly what I was looking for. Thanks!