Is it normal for hair to grow back the next day after my first laser hair removal treatment? (Photo)

First, can we assume that the treatment was effective?  The laser should have left the skin slightly pink with raised areas or swelling around the hair follicles.  If not, then the settings may need to be adjusted up to have an effective treatment.  Shaving just before a treatment is fine.  The laser only needs the small amount of hair in the skin to work.
For an effective treatment, you will be left with "singed stubble."  The stubble will fall out or several days.   The stubble may appear to be growing but is actually just working its way out.  After the stubble falls out, you should not have hair there for a few weeks.  After a few weeks, when you see the hair start to regrow, is the best time for your next treatment.   
Thank you for the question.  Best of luck.
-Dr. Z.
De Luz Medical Aesthetics

Hello and thank you for your question.  Laser hair removal does require a series of treatments before seeing the hair reduction, so it is normal to see hair growth after your first treatment.  Depending on the laser being used, laser hair removal usually requires a series of 6-9 treatments spaced 6-8 weeks apart.  I recommending scheduling a follow up visit with the clinician who performed your treatment to discuss additional sessions.  Best of luck to you.