Do you have to cut your hair to go natural?
No, you do not have to cut your hair. You can simply stop
getting relaxers. To avoid a rough transition, though, you should
get sew ins until your transition is complete.
If your hair is currently relaxed, then you will need to cut off
the relaxed parts. You may grow your hair out of about 4-6 months
before cutting the relaxed parts, but if you don't cut it, it will
soon break off at the demarcation line (the point where the
stronger natural hair meets the more fragile relaxed hair)