IUI (intrauterine insemination) 

IUI (intrauterine insemination) is a type of fertility treatment that involves placing sperm directly into a woman's uterus. The procedure is done by a doctor, who uses a thin flexible tube (catheter) to insert washed sperm into the uterus. The goal of IUI is to increase the number of sperm that reach the fallopian tubes, increasing the chances of fertilization and pregnancy.

IUI is typically used for couples who have mild to moderate infertility, such as couples with unexplained infertility, mild male factor infertility, or cervical factor infertility. It may also be used for couples who have been diagnosed with conditions such as endometriosis or polycystic ovary syndrome (PCOS).

The procedure is relatively simple and usually takes only a few minutes to complete. It is usually done in conjunction with ovulation induction (using medication to stimulate ovulation) to increase the chances of pregnancy.

It is important to note that the success rate of IUI is lower compared to other fertility treatments such as IVF. The success rate of IUI varies depending on the underlying cause of infertility, but it generally ranges from 10-20% per cycle.

It's also important to note that there are some risks associated with IUI, such as multiple pregnancies (twins, triplets, etc.), and it's important to consult with a fertility specialist to determine if IUI is the right treatment option for you.