Reproductive biology
Discover in depth the biological processes related to fertilization, embryo implantation and all aspects affecting human reproductive biology.
Double check. Safety in the in vitro fertilisation (IVF) laboratory
A recent news item generated alarm regarding safety procedures in in vitro fertilisation (IVF) laboratories. On this occasion, a hospital in Utrecht is currently investigating 26 potential cases of confusion as a result of insemination with semen […]
Personalised fertility counselling unit
Behind our on-line consultation system, there is a team of trained personnel. The team is ready to help users and make them see that the concerns amongst people who are looking for an answer to […]
Will my frozen embryos survive?
Cryopreservation, or embryo freezing, is an essential part of courses of assisted reproduction treatment since it means that embryos can be preserved in order to be used at a later date and without the passing of time […]
Spermatozoa production takes place in the testicular seminiferous tubules and the process is known as spermatogenesis. At the end of this process, a germ cell generates 4 mature spermatozoa which will survive in the human body for between […]
Asthenozoospermia is a decrease in the percentage of motile sperm in a sperm sample and it is identified by means of a seminogram or semen analysis. Nowadays, seminograms are a basic tool which provide us with information […]
How are seminograms interpreted?
A seminogram, or semen analysis, is a basic analysis of a semen sample with the aim of determining semen quality. In order to carry out the analysis correctly, the patient needs to refrain from sexual intercourse for […]
Oligozoospermia and criptozoospermia
Oligozoospermia is the presence of an abnormally low number of sperm in a semen sample. According to the criteria in the 5th edition of the World Health Organisation (WHO) manual, normal sperm content in a sample […]
A boy or a girl: can I choose my baby’s gender?
Whilst it is technically possible to choose a child’s gender using pre-implantation genetic diagnosis, Spanish law prohibits selecting a baby’s sex, except with a view to avoiding the transmission of genetic diseases associated with the X chromosome. […]
Techniques for obtaining spermatozoa
There are currently many different solutions when spermatozoa are not present in ejaculate. Access to a trained urologist increases chances of achieving spermatozoa in greater quantities and with improved quality. What is TESA (Testicular Sperm Aspiration)? This […]
ACCESS INFORMATION PRIOR TO THIS POST ON BETA β-hCG (human chorionic gonadotropin) is a glycoprotein that is initially secreted by trophoblast cells in the embryo shortly after it implants in the uterus. The rapid increase […]