If you or your partner is sterile probably already are researching methods of assisted reproduction to achieve having a family. These methods are completely safe and are carried out with success in innumerable health centres specialized in the biology of reproduction, if you are in Mexico I recommend that you seek specialist centre located in Monterrey, because they offer very good service and their techniques are the best. One of these procedures is intrauterine insemination which consists of the introduction of the male gametes, i.e. sperm into the uterine cavity of the mother, so that sperm then travel into the fallopian tubes and fertilised the ovum. The couple’s or a donor’s sperm can be used to perform the insemination technique. And speaking of donors today I want to talk about Spain, therefore will become one of countries that made older insemination treatments based on donations but egg, but in general Spain has become one of the countries that greater amount of assisted reproduction treatments performed. If you are in search of insemination treatments seeking specialized centers of Monterrey, as I mentioned previously, physicians are highly trained, the facilities are the best in the country and prices are very accessible.