It does make you taller, at least until your growth plates have fused. For example, somatropin, a synthetic growth hormone, is sometimes given as an injection to children who are significantly smaller than expected to help them grow taller. Once their growth plates have fused, however, a person's height is set, and so there's no way to become taller without breaking bones. If a grown adult took somatropin, their body would build muscle instead of making them taller.
ETA: excess growth hormone can lead to major health issues, which is why it's not typically prescribed for regular-height people to become a bit taller. Somatropin, for example, increases your risk of brain and skin cancers.
thecalcographer t1_iu37wi4 wrote
Reply to If Robert waldow became so tall because of an excess of hgh, then why does taking hgh not make you taller? by Komoasks
It does make you taller, at least until your growth plates have fused. For example, somatropin, a synthetic growth hormone, is sometimes given as an injection to children who are significantly smaller than expected to help them grow taller. Once their growth plates have fused, however, a person's height is set, and so there's no way to become taller without breaking bones. If a grown adult took somatropin, their body would build muscle instead of making them taller.
ETA: excess growth hormone can lead to major health issues, which is why it's not typically prescribed for regular-height people to become a bit taller. Somatropin, for example, increases your risk of brain and skin cancers.