Height stops growing by 18 yrs age as groy end epiphysis gets close down except of femur thigh bone which closes at 21 yrs. Femur grows about 2.5 cm after 18 yrs age.
Make sure is it still growing.
If yes then
You have to do investigations to search for root causes it should be
From simple to major....
Next Steps
do blood tests of hormones esp growth hormone
Homoeopathy have solution for all the causes
Health Tips
take Homoeopathy treatment after investigations