The way risk is measured is by IGF-1 level for your age, not the dose of rHGH.
Find your ULN (upper limit of normal) IGF based on assay type(ie lab that performed the test):
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Your risk of developing signs of acromegaly depends on how much higher than the ULN you are:
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At 1.3x ULN acromegaly features could begin to develop at between 2-5 years if you sustain IGF this high.
At 1.5x initial features can develop at 2 years.
2x starting at 1 year.
Above 2x acromegaly can begin to develop in less than a year,
First is soft and connective tissue, lips, nose, ears, organs, fully (lips) or partially (cartilage) reversible if you stop in time.
Then bone changes slowly over time, forehead, chin, teeth begin to misalign, irreversible.
It happens so slowly even family members often miss it for 5+ years.