Treatment & Services

What is IUI?

A Guide to Intrauterine Insemination

Intrauterine insemination (IUI) is a widely used fertility treatment that involves placing specially prepared sperm directly into the uterus to improve the chances of fertilization. It’s often considered the first treatment option before moving to more advanced procedures like IVF.

At Bangkok Central Clinic, we’ve supported many patients on their fertility journey using IUI. With experienced specialists, advanced lab techniques, and compassionate care, we tailor every treatment to your personal needs and reproductive goals.

An infographic showing who can benefit from IUI.

Who Can Benefit From IUI?

IUI may be recommended in cases such as:

IUI is not typically recommended for individuals with blocked fallopian tubes, severe endometriosis, or very low sperm quality. Our team will assess your medical background and diagnostic results to determine whether IUI is a suitable option.

How the IUI Process Works

Initial Consultation and Evaluation

Your journey begins with a comprehensive consultation. Our fertility team will review your medical history, discuss past treatments (if any), and recommend tests to evaluate hormone levels, ovarian function, and sperm quality.

Ovulation Monitoring and Preparation

Once treatment is planned, ovulation is tracked through blood tests and ultrasound scans. Fertility medication may be prescribed to stimulate egg development and ensure precise timing for the procedure.

Sperm Collection and Preparation

A fresh semen sample is collected, usually on the day of the procedure. In our lab, the sperm is “washed” to isolate the healthiest, most motile sperm while removing unwanted substances.

Insemination Procedure

When ovulation is confirmed, the IUI is performed in a simple outpatient visit. A thin, flexible catheter is used to place the prepared sperm directly into the uterus. The procedure takes only a few minutes and requires no anesthesia.

Aftercare and Monitoring

You may rest briefly after the procedure and resume normal activity shortly afterward. A pregnancy test is typically scheduled about two weeks later, followed by early monitoring if the result is positive.

Factors That Influence IUI Success

IUI success rates depend on multiple factors, including:

While success is not guaranteed on the first attempt, many patients achieve pregnancy within a few cycles. Our team will guide you throughout, making adjustments as needed for the best possible outcome.

Commonly Asked Questions About IUI

Most patients describe IUI as a quick and relatively painless procedure, similar to a Pap smear. You may feel brief cramping during or after, but this usually resolves quickly.

Some patients conceive on their first cycle, while others may need two or three rounds. Your doctor will monitor your progress and help you decide when or whether to continue.

IUI is generally low-risk. Minor side effects may include cramping or spotting. In cases where fertility drugs are used, there’s a small risk of multiple pregnancy or ovarian hyperstimulation.

IUI is less invasive and more affordable than IVF. It involves placing sperm in the uterus, while IVF involves fertilizing eggs in a lab and transferring an embryo to the uterus.