Not growing any what?  Balls?  Boobs?  Hair?

Oh, you mean why aren't you getting taller.  Heh.

Have you been smoking?  That will stunt your growth.

Or you could just be a runt.  Seems like every litter has one.

If you're a guy, then you can make up for being short by becoming a
bulked-up weightlifter -- nobody will call you "short" if you can kick
their a.s.  If you're a girl, then just try to enhance your shortness by
looking and acting cute.

Most of your growth occurs before  you are 16. You might grow a couple of
inches yet. You should talk to your doctor.

Jeff

Uh, vital information tidbit #1 would be your gender.

It's hard to say based on this alone.  You may have reached your adult
height.  Most boys tend to grow slowly throughout their adolescence,
often continuing into their early 20s, but the increment after the age
of 16 or so may be small.  There is much individual variation.

I reached my final height before my 14th birthday, as I recall.  The
same influences that can cause you to grow very quickly can also cause
your bones to fuse early, stopping growth.  Girls grow very quickly
before menarche but they stop growing relatively early; boys grow more
slowly and later but continue growing for a longer period.

A good indicator of adult height is an estimate based on the height of
parents.  Your father is average; your mother is 1 SD below the mean.
So you may finish 0.5 SD below the mean for men, or about 5'8".  This is
very approximate, though.  Only time will tell.  The heights of other
family members might give you hints as well.

At your height, there isn't really anything wrong, even though you might
be shorter than you'd like to be.  My guess is that you'll grow a bit
more and then stop, although a late spurt cannot be excluded.  Have you
already had a period of very rapid growth in recent years?