Sperm testing
Standard at-home semen analysis
Sperm DNA fragmentation testing
Post-vasectomy semen analysis
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Sperm freezing
How it works
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Sperm testing
Standard at-home semen analysis
Sperm DNA fragmentation testing
Post-vasectomy semen analysis
See all sperm testing kits
Sperm freezing
How it works
Ways to save
For providers
Sign in
Find your plan
Age & male fertility
How testosterone declines with age
Testosterone declines gradually with age, starting at around 40 years old and at a rate of approximately 1% to 2% per year.
Revised on
July 16, 2026
