According to the World Health Organization, secondary infertility occurs in women who have given birth or have been pregnant but are subsequently unable to have children due to an inability to conceive or an inability to carry a pregnancy to term.

According to statistics, about 1/3 of infertile couples have the cause from the husband and the common problems in the sperm production or sperm supply stage. The direction of treatment for male infertility depends on the cause and severity of the disease.

Intrauterine insemination is a simple and safe assisted reproductive method. This method uses a small catheter containing washed and selected sperm, passed through the cervix and injected directly into the woman's uterus when the egg is mature, to create conditions for the egg and sperm to meet for conception.

Pregnant women often have warning signs such as fatigue, bleeding, bloating, breast tenderness and delayed menstruation. However, to confirm pregnancy, doctors also need to use the beta-hCG test to accurately assess the pregnancy and monitor fetal development or pregnancy abnormalities. This test is especially important in cases of embryo transfer in IVF, combined with vaginal ultrasound to determine clinical or biochemical pregnancy.

Intrauterine insemination is one of the assisted reproductive techniques applied by many couples. However, there is still a failure rate of insemination and it needs to be redone so that infertile couples can have children.

Intrauterine insemination is one of the assisted reproductive methods chosen by many infertile couples. However, not all couples are lucky enough to succeed the first time. So should we inject sperm into the uterus or not and what is the success rate of intrauterine insemination?

The general principle of sperm washing is that sperm will be put into a ready-made chemical (this chemical is also the sperm culture medium), then put into a centrifuge. The centrifugal force in the spinner will divide healthy sperm to one side, while dead, weak or deformed sperm will be separated to the other side.

Intrauterine insemination (IUI) is one of the best infertility treatments available today. In this procedure, the husband's healthiest sperm will be selected to be injected into the wife's uterus at the time of ovulation.

Intrauterine insemination (IUI) is a fertility treatment for infertile couples due to mild sperm abnormalities or unexplained infertility, endometriosis, etc. However, this fertility treatment has a low success rate. So why does IUI fail so many times?