Other Services

Preparations and external spermiograms

The TAHE FERTILITY andrology laboratory carries out spermiograms and diagnostic preparation for gynaecological and urological consultations. Once the diagnostic tests or sperm preparation has been done a detailed report is made and given to the doctor who requested the examination.

Sperm bank

TAHE FERTILIDAD has a sperm bank where we store sperm samples at a temperature of -196 ºC. At this temperature, sperm can be stored indefinitely, ensuring survival after thawing. Samples are stored in several categories:

Patients of Tahe Fertilidad
To preserve fertility

There are different reasons why a patient undergoing assisted reproduction treatment might freeze a sample of sperm, such as those with a very low sperm quality or those who encounter difficulties in providing a sample. For these patients we store a sample to ensure that we have sperm to inject into the eggs at the time of treatment. We also store sperm for patients awaiting egg donation, men who may not be available on the day we extract the eggs, and patients who have undergone a testicular biopsy or an epididymal sperm aspiration.

Men who may wish to preserve their fertile sperm for the future include those who are going to undergo chemotherapy or radiotherapy, are going to have a vasectomy, or simply want to safeguard for the future.

All donors must undergo sperm analysis, and we only accept those with a high quality result. Once they have completed the analysis satisfactorily we carry out a comprehensive personal and family medical history, in order to rule out any hereditary illnesses. A full exam ensures there are no sexually transmitted diseases (HIV 1 and 2, hepatitis B, hepatitis C, syphilis, cytomegalovirus and chlamydia). The test also detects genetic diseases (karyotype, the study of genes carrying cystic fibrosis or spinal muscular atrophy, test for haematological abnormalities: thalassemia, test for biochemical abnormalities: diabetes, hypercholesterolemia).

Sperm from donors is used mainly for:

  • Heterosexual couples with sperm deficiency in ejaculation, in the testicles or the epididymis.
  • Lesbian couples
  • Single women
  • Couples at risk of genetic illness inherited from the male that cannot be avoided with pre-implantation genetic diagnosis.

Sperm wash for seropositive males

For the hepatitis B and C virus or the human immune deficiency virus (HIV)

TAHE FERTILITY has obtained official authorisation from the governmental ministry of health to carry out assisted reproduction treatment for serodiscordant couples, formed by a man who is infected with hepatitis B and C and HIV and a woman who is not.

Hepatitis B and C and HIV are transmitted via semen and blood. Where a man is infected he must use condoms with an uninfected partner. Until recently if the couple wished to have children there were only two options: practise unprotected sex and risk infecting the partner or using sperm from a sperm bank.

In recent years the technique of sperm washing has been developed. This eliminates the HIV and hepatitis B and C virus and thus avoids the risk of practising unprotected sex in order to achieve pregnancy.

Once the couple has been examined and assessed by medical specialists, they can begin the process of treatment for serodiscordant couples. If there are no fertility problems, the treatment will be determined by the quality of the sperm. If the sperm quality is low and the number of mobile sperm isolated in the laboratory is low, we recommend in vitro fertilisation. If the sperm count is high we can use artificial insemination.

In the TAHE FERTILITY andrology laboratory the technique used for sperm washing removes uninfected mobile sperm. Once the semen sample is processed, it will be frozen and most of it will be quarantined in the sperm bank in the lab, and a small amount will sent for analysis to the molecular biology laboratory to verify the virus is absent. Once the sample has been verified the assisted reproduction treatment can go ahead as normal.