In this guide, we explain what PGT is and how it's used.

PGT is a technique that can be used in a laboratory to check if an embryo has the genes for a severe disease.

Fertilization is when a sperm cell and egg cell unite to form a single cell called a zygote. A zygote can grow into a baby.

A pregnancy in which two fetuses (babies) develop in the womb at the same time.

Genetic disorders that are caused by three copies of one chromosome being present in one or more cells, instead of the usual two copies.

IVF and ICSI are techniques in the field of assisted reproductive technology, to help treat infertility.

Assisted reproductive technology, ART for short, describes technologies to treat infertility.

A dangerous form of pregnancy that develops and grows before the fertilized egg reaches the uterus.

Loss of a pregnancy, which means the fertilized egg, embryo or fetus dies and will typically be expelled.