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Q: Can the sperm fall out?
A: Once the sperm is injected into the uterus, it does not fall out. There can, however, be increased wetness after the procedure because of the catheter loosening mucus in the cervix and allowing it to flow out. Some doctors will insert a cup around the cervix to prevent leakage, but most do not.
Q: How come I feel wetter after the IUI ? like the sperm is falling out?
A: The catheter loosens cervical mucus and lets it come out more easily. It is common to see more fertile mucus after an IUI for this reason, as well as the fact that well-timed IUI should be close to ovulation.