Semen analysis is the cornerstone

June 16, 2007

Dra. Dynora Salazar Ponce, Dr. José Sepúlveda González

Abnormal semen quality or sexual dysfunctions are contributing factors in about half of infertile couples. A male factor, alone, is responsible in approximately 30%.

Semen analysis is the cornerstone of male fertility assessment and it is often the trigger to refer patients for a specialist opinion. It is optimal to send semen samples to laboratories linked with infertility services.

To perform a correctly semen analysis the patient must have abstinence (no ejaculations) 2 or 3 days before collection. The sample must be collected by masturbation or by intercourse using a special condom, without any spermicide substances. It can be collected at home or in laboratory, and must be analyzed within 1 hour of collection.

Normal seminal analysis (World Health Organization):
Volume: 1.5 – 5 ml
PH: >7.2
Sperm concentration: > 20mill/ml
Sperm total motile count: > 10mill.
Sperm Motility: 40%
Sperm morphology :> 30%