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Does unilateral cryptorchidism also affect fertility?

By Rebeca Reus BSc, MSc (embryologist).
Last Update: 02/28/2022

Yes, although the effect is less than if bilateral cryptorchidism is present. In cases where surgery is not performed, 51% of patients with unilateral cryptorchidism present alterations in the values of the seminogram (semen analysis). If surgery is performed, this percentage decreases to approximately 25%.

 Rebeca Reus
Rebeca Reus
BSc, MSc
Embryologist
Degree in Human Biology (Biochemistry) from the Pompeu Fabra University (UPF). Official Master's Degree in Clinical Analysis Laboratory from the UPF and Master’s Degree about the Theoretical Basis and Laboratory Procedures in Assisted Reproduction from the University of Valencia (UV).
Embryologist. Degree in Human Biology (Biochemistry) from the Pompeu Fabra University (UPF). Official Master's Degree in Clinical Analysis Laboratory from the UPF and Master’s Degree about the Theoretical Basis and Laboratory Procedures in Assisted Reproduction from the University of Valencia (UV).