Table of Contents
- What ICSI and TESA are
- Are they safe?
- Possible side effects of ICSI
- Possible side effects of TESA
- What about the baby’s health?
- When to call your doctor
- Frequently asked questions
ICSI and TESA are well-established, generally safe fertility treatments for male-factor infertility. Side effects are usually mild and short-lived — for ICSI, mostly related to the woman’s ovarian stimulation and egg collection; for TESA, mild soreness or swelling at the site. Serious complications are uncommon.
What ICSI and TESA are ICSI (Intracytoplasmic Sperm Injection)
Is a form of IVF in which a single healthy sperm is injected directly into an egg in the laboratory — a technique that helps when sperm count or motility is low. TESA (Testicular Sperm Aspiration) is a minor procedure that retrieves sperm directly from the testicle when there is little or no sperm in the semen. The two are often used together: TESA obtains the sperm, and ICSI uses it to fertilise the egg. Understanding what each involves makes their side effects easier to put in perspective.
Are they safe?
Both are routine in modern fertility care and are considered safe. As with any medical procedure there are small risks, but the overwhelming majority of patients go through treatment without any significant problem. Knowing what’s normal — and what isn’t — helps you feel confident and recognise the rare situations that need attention.
Possible side effects of ICSI
Because ICSI is part of an IVF cycle, most of the side effects a couple notices actually come from the ovarian stimulation and egg collection the woman undergoes rather than the injection itself. These can include bloating, mood changes and breast tenderness during stimulation, and mild cramping or light spotting after egg collection. Uncommonly, stimulation can lead to ovarian hyperstimulation syndrome (OHSS), an over-response that needs review if abdominal pain and swelling become severe. Careful monitoring during the cycle keeps these risks low.
Possible side effects of TESA
TESA is a minor procedure carried out under local anaesthesia (sometimes with light sedation), so you shouldn’t feel it during. Afterwards, it’s normal to have mild soreness, swelling or bruising at the site for a few days, and rarely there can be minor bleeding or a small risk of infection. Most men recover quickly and return to normal activities within a short time, using simple pain relief if needed.
What about the baby's health?
This is one of the most common worries, and the reassuring picture is that babies conceived through ICSI are, overall, healthy. Where researchers have studied small differences, these are largely linked to the underlying fertility problem in the parents rather than to the ICSI technique itself. Your specialist can talk you through any screening or tests that are relevant to your particular situation, so you can make decisions with full information.
When to call your doctor
After ICSI, seek prompt review for severe abdominal pain and swelling, rapid weight gain or breathlessness, as these can signal OHSS. After TESA, contact your doctor for increasing pain, spreading redness, fever or significant swelling at the site. These situations are uncommon, but acting early keeps you safe. Explore ICSI and TESA care in Lucknow.
Medically reviewed by Dr. Richa Gangwar — MS, DNB, MRCOG (London), IVF Specialist, Gomti Nagar, Lucknow. Last reviewed: June 2026. General guidance: ASRM.
FAQ:-
Is ICSI safe?
Yes — it’s a routine, well-established fertility technique. Most side effects come from the IVF stimulation and are usually mild.
What are the side effects of TESA?
Mainly mild soreness, swelling or bruising for a few days; serious problems are rare.
Are ICSI babies healthy?
Overall yes; any small differences studied are largely tied to the underlying fertility issue, not the procedure.
Is TESA painful?
It’s done under anaesthesia so you shouldn’t feel it during; mild soreness afterwards is normal.
What is OHSS?
Ovarian hyperstimulation syndrome — an uncommon over-response to fertility medication that needs review if symptoms are severe.
