The in vitro insemination is a method, in which the mature ova cells of the patient are combines with the spermatozoids of her partner (or donor). In the classical in vitro (IVF) selected spermatozoids are combined with the ova cells and are placed in в CO2 incubator with constant temperature of 37оC for 6 to 18 hours.

On the 18th hour are done series of tests for signs of insemination.
This method is mostly used when the fallopian tube is partially or completely blocked or surgically removed.