After five months the changes caused by the testosterone treatment - hair growth, deepening of the voice - are already irreversible.
What can you expect from testosterone treatment?
Recent experimental results have shown testosterone treatments may induce adverse cardiovascular events.
Whether there will be any demand for testosterone treatment, even if it is shown to be safe and moderately effective, is another issue.
In Canada, post-menopausal women have been able to obtain government-approved testosterone treatment since 2002.
When they begin to drop below normal, he will receive regular testosterone treatments.
The goal of testosterone treatment is to raise a woman's testosterone level no higher than what is normal for a young woman.
Without testosterone treatment, some may develop gynecomastia during puberty.
Some types of micropenis can be addressed with growth hormone or testosterone treatment in early childhood.