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Since the relaxation of birth control policies, many older couples have chosen assisted reproduction. However, due to objective limitations, the success rate of these older couples is often low. Although poor ovarian function in older women may be one of the reasons, poor sperm quality in older men may also be another major reason for the failure of assisted reproduction.

Therefore, when you first learn that IVF has repeatedly failed, men should not rush to blame your lover. First, you should reflect on whether your sperm quality is up to standard and whether you have made adequate preparations before the IVF.

Here we will provide some basic information about the sperm indicators that may affect the success rate of IVF and the preparations men need to make before IVF.

Sperm quality indicators that affect IVF success

1. Sperm quantity and motility

The most important indicator: Although in theory only one sperm is needed for IVF, if there is not enough sperm with sufficient motility, embryologists will face great difficulties in finding and selecting sperm to combine with eggs. There may not be enough good quality sperm to fertilize the egg.

2. Sperm deformity rate