A member asked:

What can cause drastically lower sperm motility? 1st test 70%, just over a month later 10%?

A doctor has provided 1 answer

Many things: First issue is timing. Specimen must get to lab within 20-30 min. Hours old sperm swim poorly. It must be kept warm (cold sperm swim poorly). Medications and recent febrile illnesses can also effect semen analysis. Talk to a urologist about reversible causes of sub-normal semen analysis.

Answered 5/11/2013

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Can marijuanna cause slow sperm motility?

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