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IUI (Intrauterine Insemination): An Option for Infertility

October 27 / 2026

 

 

     IUI (Intrauterine Insemination) is a fertility treatment that enhances the chances of pregnancy. It is a method that closely resembles natural conception by directly injecting sperm into the uterus. A small plastic tube is used to insert the sperm through the cervix at the time of or near ovulation. This procedure not only increases the chances of fertilization but also reduces sperm motility. The process is supervised by a reproductive specialist in obstetrics and gynecology.

 

What is Infertility?

  1. For individuals under 35 years old:
    • A married couple engaging in regular sexual intercourse (more than twice a week) for a year without achieving pregnancy is considered infertile.
  2. For individuals over 35 years old:
    • If pregnancy does not occur after six months of regular intercourse (more than twice a week), medical evaluation for infertility is recommended, as age significantly affects fertility.

 

Causes of Infertility

Infertility can be categorized into three main groups:

  1. 50% due to female factors:
    • Irregular ovulation or low egg count
    • Blocked or swollen fallopian tubes prevent sperm from reaching the egg
    • Uterine fibroids cause an uneven uterine lining, which may hinder implantation
    • Cervical stenosis prevents sperm from reaching the uterus
       
  2. 20% due to male factors:
    • Absence of sperm in semen
    • Low sperm count or abnormal sperm morphology
    • Erectile dysfunction
       
  3. 30% of cases have unknown causes

 

Benefits of IUI

  1. Sperm undergoes preparation to select only the most motile sperm
  2. The procedure is timed precisely with ovulation
  3. Sperm is injected directly into the uterus

 

Side Effects of IUI

     After the procedure, mild cramping, irritation, or light vaginal bleeding may occur. Pain relievers can help, and symptoms typically subside within 2-3 days. If symptoms persist, medical consultation is advised.

 

Preparation for IUI

  • Consultation with a reproductive specialist to assess the health of both partners
  • Maintaining a healthy lifestyle
  • Avoiding alcohol and smoking for 2-3 months before the procedure
  • Getting adequate rest
  • Preconception screening tests for both partners, including:
    • Blood tests for genetic disorders (e.g., thalassemia), STDs, blood type, and rubella immunity (women who have not been vaccinated will need to receive the rubella vaccine before IUI)
    • Ultrasound to assess ovarian reserves and detect abnormalities such as fibroids or cysts
    • Semen analysis to evaluate sperm quality; severe abnormalities may prevent IUI
  • Women should undergo a Pap smear within the past year and track menstrual cycles for at least two months
  • Women should take folic acid supplements under the guidance of a doctor.
  • The man should abstain from sexual intercourse or ejaculation for 2-7 days before sperm collection to achieve optimal results.

 

IUI Procedure

  • Oral medication to stimulate ovulation
  • Transvaginal ultrasound to monitor follicle development, followed by an injection to trigger ovulation
  • Insemination of processed sperm into the uterus and administration of hormone medications
  • Hormone level testing and pregnancy confirmation

 

Post-IUI Care

  • Rest for 10-15 minutes after the procedure
  • Resume normal sexual activity
  • Continue daily activities, including exercise
  • Avoid smoking and alcohol
  • Take prescribed medications and folic acid
  • If mild cramping or light bleeding occurs, pain relievers may be used. Seek medical attention if a fever develops.

 

Required Documents for IUI

  • National identification cards of both partners
  • Legal marriage certificate

 

Q&A

  • Can I choose the baby's gender?
    • No, IUI does not allow gender selection.
  • Is a marriage certificate required?
    • Yes, legal proof of marriage is necessary for IUI and legal parentage confirmation.
  • Can I undergo IUI after sterilization?
    • No, since IUI relies on natural fertilization, previous sterilization prevents the procedure.
  • Can IUI be performed after fallopian tube removal?
    • If both tubes are removed, IUI is not possible. If only one tube is removed and the remaining tube is functional, IUI may still be an option.

 

 

For more information, please contact
 Obstetrics and Gynecology, 1st Floor, RAM 2 Hospital
Email:
information@ram2-hosp.com
Line Official: @ram2
Tel: 02-032-3888

 


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