A small patch on my hair was ripped out by glue and now I have a bald spot; will it grow back?

Traumatic hair loss may or may not grow back.  It may take several months even up to one year to find out.

This is tough to answer without pictures. It will most likely grow back in several months. In the mean time, I suggest seeing a hair loss expert to evaluate and go over your condition and provide you information about any necessary treatment options. There are great non-invasive, alternatvie options like PRP/progesterone which can improve hair growth to this area. Best, Dr. Emer 

if the area is small, direct excision will help. I might try some Minoxidil first but if it has been more than a month, you probably have permanent loss.

There is a good chance it will grow back. Of course, I can't say for sure because I don't have your photos in front of me, and I don't know your whole story and I don't know the health of your hair and scalp before this happened.In general, if the trauma was minimal, there is a pretty good chance. If you had a weave for a while and then took if off and the glue pulled off hair - that's a whole different story (as microinflammation may have been accumulating for a longer time). As you can see there are a few factors here that we must consider.All in all, please see a hair specialist. 

if the follicles were pulled out along with the hair shaft then it will not grow back but if the hair follicles did not come out then it will grow back. 

A small patch of hair was ripped out and you can expect that is will most likely grow back within 8 months