See answer: Assuming the injection you received was testosterone, and depending on the dose (100-300 mg), it is unlikely that just one injection will adversely affect your baseline sperm count for any significant period of time if at all. Repeated injections however will have an adverse effect depending on duration with great variability from one individual to another.
Answered 10/1/2013
4.8k views
Varies: If the injection was a testosterone or testosterone derivative then there may be some slight impact for approximately three months. It takes approximately three months for new sperm to develop.
Answered 10/1/2013
4.8k views
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