If ejaculation fails to deposit an adequate volume of semen into the vaginal canal, the migration of sperm to the fallopian tube may not easily take place. Several conditions can result in insufficient ejaculation, including retrograde ejaculation, loss of emission due to obstruction, hypospadias and premature ejaculation. Last Updated: 9/23/2002
The Johns Hopkins University 1996-2003. All rights reserved. This information is not intended to provide advice on personal medical matters, nor is it intended to be a substitute for consultation.
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