Why Latex codes are not working in Medical Sciences Stack Exchange?
No code is giving any output. Please look into this matter.
Not all sites in the network have MathJax enabled. Here is a complete list, and Medical Sciences is not on the list. The answer also states
Why doesn't [site X] support MathJax?
MathJax increases page load times drastically, so it's only supported on sites that have demonstrated a serious need for it.
This is usually done on the site's own Meta (you're there right now) by providing quite a few posts which would benefit from this. There are alternatives which might work in the meantime.