Clínica Santa María Centro especializado en Técnicas de Reproducción Humana

The cause of up to 50% of all infertility cases, to some extent, lies with the man.

• Low sperm count (below 20 million/cc)
• Absence of spermatozoids in the semen (azoospermia)
• Decreased mobility of the spermatozoids (less that 50% with forward progression)
• Abnormal morphology of the spermatozoids (less that 15% are normally formed)
• Problems with the mechanics of ejaculation (retrograde ejaculation, anejaculation, erectile dysfunction, paraplegia, etc.)
• Sterilization surgery (vasectomy)

Causes that can produce this problems are also multiple, although in most cases is very difficult to determine them, for example:

• Mumps virus provoked Orchitis
• Chemical exposition: pesticides, plumb, mercury, etc.
• Cancer Chemotherapy or Radiotherapy
• Not descended testicles
• Chromosome anomalies
• Testicular Trauma

Fertility problems caused by the male factor are diagnosed through the spermogram, which is considered the most important analysis for the study of male fertility and greatly complements the diagnosis for the couple.

Fortunately with ICSI introduction, many of this cases can be managed with this technique.  Many children have already been conceived from parents with severe sperm problems, even with azoospermia, by ICSI.

Other cases require Artificial Insemination either husband or donor.

Varicocele, which is the presence of varicose veins in the testicle “pouch” (scrotum), could also produce troubles with spermatogenesis. Although controversial, varicocele surgery can improve sperm quality in 50% of cases.