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Main risks in Assisted Reproduction techniques

Before beginning treatment all the risks and possible complications that may arise are explained, resolving all the doubts that patients may have in advance. This is very important to understand all the process and to be prepared for every step. An informed consent explaining the technique to be undertaken is signed jointly with the Doctor.

The main risks are:

  • Multiple pregnancy

    Approximately between 20 and 30% of pregnancies will be a twin pregnancy. The risk of triplets is low (below 1%). Please note that in Embriogyn we have been implementing policies and strategies of single embryo transfer for years with the purpose of reducing the risk of multiple pregnancy.


  • Ectopic pregnancy

    Exceptionally, the embryo can move from the inner part of the uterus into a fallopian tube and implant there. The incidence rate is between 1 and 3% following IVF treatment. These cases call for a medical and surgical intervention as the life of the patient is at risk.


  • Ovarian Hyperstimulation Syndrome (OHSS)

    It is the result of an exaggerated response following stimulation with gonadotropines. Young, thin patients and those with polycystic ovaries are most at risk. The probability of occurrence is less than 1%. It envolves ovarian enlargement following egg retrieval and the secretion of substances that allow the shift of fluid from the blood vessels into the abdominal or toracic cavities leading to thickenning of the blood running through the arteries and veins which implies health risks.