Hello Thanks for writing to HCM Height is determined by a combination of genetic and environmental factors. Human growth is regulated by somatotropin (human growth hormone) secreted by anterior pituitary gland, which gradually subside after adolescence. Bones grow by contribution of new bone from growth plates at each end of long bones. After adolescence these get ossified & there after no further growth is possible. Thus height of males stops to increase further at the age 18-20. I am sorry, to say that as you are already 25 years old, no further increase in height is possible Discuss this with your doctor and then decide Hope this helps Take Care.