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Oligospermia refers to a low sperm quantity in the ejaculated semen. It is an sperm alteration characterized by a reduced concentration of sperm. Which can affect, or make impossible, the achievement of the pregnancy in a natural way. This disease, also known as. The quantity of 15 million sperm per millimeter. Is a reference since 2010, when the World Health Organization changed the values of sperm parameters of what was considered normospermia, which means minimum values of sperm quality.

Teratozoospermia, also known as teratospermia, is a semen alteration. In which there is a large number of spermatozoa with abnormal morphology. It is a sperm condition that may lead to serious consequences, such as male infertility. The sperm parameter that is compromised is sperm morphology. With regard to teratozoospermia, the shape of the spermatozoon. This alteration produces male infertility. Since unproportioned spermatozoa or with odd morphology ar.