Cervical Conization (LEEP / Cone Biopsy): treating abnormal cells while preserving fertility in Turkey

What exactly is cervical conization, and what does it remove?

Cervical conization is the removal of a small, cone-shaped piece of the cervix that contains the abnormal cells, both to diagnose the problem precisely and to treat it. The cone includes the surface where pre-cancerous change sits and extends up the cervical canal, so that the whole affected zone is taken out and examined under the microscope. Because only a small part of the cervix is removed, the uterus stays in place and the procedure preserves fertility. It is one of the most common gynaecological procedures worldwide and is highly effective, clearing high-grade disease in around 90 to 95 % of cases when the margins are clear.

Why is conization done — CIN and HPV explained

Conization is done to treat cervical intraepithelial neoplasia (CIN) — pre-cancerous change driven almost entirely by persistent infection with high-risk human papillomavirus (HPV). HPV is extremely common and most infections clear on their own, but in a minority it persists and gradually changes the cervical cells, a process that can take many years. CIN is graded from 1 to 3, and while low-grade CIN 1 often regresses without treatment, high-grade CIN 2 or CIN 3 is treated because a meaningful proportion would otherwise progress towards cancer over time. Treating high-grade disease at this stage is precisely what prevents most cervical cancers.

Source: American College of Obstetricians and Gynecologists (ACOG), management of abnormal cervical screening and CIN

When is conization needed?

Conization is recommended when high-grade abnormal cells are confirmed, because these changes rarely cause symptoms and are usually found through screening. The most common path to it is an abnormal smear followed by colposcopy and a biopsy showing CIN 2 or CIN 3. It is also used when the abnormal area extends into the cervical canal where it cannot be fully seen, when smear and biopsy results do not agree, or when a very early, microscopic cancer needs to be ruled out or precisely staged. Because the disease is silent, the decision rests on the screening and biopsy results rather than on how a woman feels.

What assessment is done before the procedure?

Before conization the abnormal area is mapped carefully so that the cone is neither too small nor larger than needed. Assessment combines the smear result, the HPV test and a colposcopy — a magnified look at the cervix after applying a dye that highlights abnormal areas — together with a directed biopsy. This tells us the grade of disease, where it sits and how far it extends into the canal, which in turn guides the type and size of cone. In women planning a future pregnancy, this mapping is especially important, because it lets us remove only what is necessary and protect the cervix. In practice the smear detects the abnormal cells, the HPV test identifies high-risk infection, the colposcopy locates the abnormal area on the cervix, and a directed biopsy confirms the grade before any cone is planned.

LEEP or cold-knife conization — what is the difference?

There are two main ways to remove the cone, and the choice depends on the disease and on fertility plans. LEEP (loop electrosurgical excision) uses a thin heated wire loop to remove the tissue, can often be done awake with local anaesthesia and removes a smaller amount of cervix, which is gentler for future pregnancies. Cold-knife conization uses a scalpel under general anaesthesia and provides a larger, cleaner specimen with undamaged edges, which is preferred when the margins must be read very precisely or when a microscopic cancer is suspected. Both are effective; the decision balances precision against the amount of cervix removed.

Source: American Society for Colposcopy and Cervical Pathology (ASCCP), guidelines for the management of cervical precancers

How is the procedure performed, step by step?

Conization is a short procedure, usually taking only about 15 to 30 minutes, and there is no incision on the abdomen. After the appropriate anaesthesia, the cervix is visualised, the abnormal area identified with the dye used at colposcopy, and the cone of tissue removed with either the loop or the scalpel. The base is then treated to control bleeding, and the specimen is sent for microscopic examination with its margins marked. Most women go home the same day and need only simple pain relief, with some watery discharge and light spotting expected for a week or two.

What do the margins mean, and why do they matter?

The single most important result after conization is whether the margins are clear, because this predicts the chance that the disease has been fully removed. A clear (negative) margin means the abnormal cells were surrounded by healthy tissue, and recurrence is then low; an involved (positive) margin means abnormal cells reached the edge of the cone and the risk of residual or recurrent disease is higher, in the region of 15 to 20 % versus around 5 % with clear margins. A positive margin does not automatically mean another operation — close follow-up with smear and HPV testing is often enough — but it does change how carefully you are monitored. We explain your margin result plainly so you understand exactly what it means for you.

Will the abnormal cells come back, and what follow-up is needed?

After a complete conization most women are cured, but follow-up is essential because HPV can persist and lead to new changes over time. Recurrence of high-grade disease occurs in roughly 5 to 10 % of cases overall, and it is more likely when margins are involved or when high-risk HPV remains detectable afterwards. For this reason a follow-up smear and HPV test are arranged, typically within about 6 months, and surveillance continues for several years. We treat this monitoring as part of the treatment itself rather than an optional extra, and we set it up so it can be done by your own doctor at home.

Source: National Institute for Health and Care Excellence (NICE), cervical screening and management of CIN

Conization and pregnancy: what should I know?

Conization preserves fertility, but the amount of cervix removed has a bearing on a future pregnancy, which is why we keep it to the minimum necessary. Removing a small cone has little effect, while a large or repeated cone can shorten the cervix and is associated with a modest increase in the risk of preterm birth — reported at roughly 2 to 3 times the baseline in some studies, though the absolute risk remains low for most women. The cervix usually heals within a few weeks, and pregnancy is possible once healing is complete and follow-up is reassuring. Where a fertility goal exists, we plan the procedure with that in mind and, if needed, coordinate later pregnancy care including monitoring of the cervix.

Source: European Society of Gynaecological Oncology (ESGO), guidance on fertility-sparing cervical treatment

What is the relationship between conization and cervical cancer?

Conization sits at the border between prevention and early treatment, and understanding that border matters. In most cases it treats pre-cancerous CIN and prevents cancer from ever developing; in a small number of cases the cone reveals a very early, microscopic cancer, and the specimen then helps decide whether the cone alone was sufficient or whether further treatment is needed. We are careful to be honest here: conization is not a treatment for established, invasive cervical cancer, which requires a different and more extensive plan. Where the histology shows more than expected, we discuss the findings and options with you openly and without alarm.

What is our treatment approach to conization?

Our approach rests on one principle: remove all of the abnormal tissue while taking as little healthy cervix as possible, especially in women who want children. We map the disease carefully with colposcopy and biopsy before the procedure, choose between LEEP and cold-knife according to the extent and fertility plans, and check the margins closely afterwards to guide follow-up. We treat surveillance after the procedure as an integral part of care rather than an afterthought, and we set it up so your own doctor can continue it. As Associate Professor Dr. Cengiz Andan and our team, we believe that carrying the process through with the same responsible doctor from start to finish makes a real difference to both trust and outcome.

Why does experience matter in conization?

One of the strongest determinants of outcome in conization is the experience of the surgeon, because removing all of the disease while preserving cervical length and reading the margins correctly takes judgement and precision. Associate Professor Dr. Cengiz Andan brings 18 years of experience, more than 2,000 laparoscopic procedures and a high volume of cervical and minimally invasive work, reflecting deep familiarity with these techniques. In experienced hands the complication rate is low — in the region of 2 % — and a complete, fertility-sparing excision can be performed with greater confidence. Even so, we say clearly that every procedure carries some risk and that results vary from person to person.

How does recovery and going home work after the procedure?

Recovery after conization is quick, because it is a short procedure with no abdominal wound. Most women go home the same day and return to normal daily activity within a few days, with watery discharge and light spotting that settle over a week or two; sexual activity, tampons and swimming are usually avoided for about 4 weeks while the cervix heals. The question on most patients' minds is "what if a problem arises after I go home?": complications such as bleeding are uncommon, but if one occurs we remain reachable, coordinate with your doctor in your home country and follow the histology, the margin result and your surveillance remotely together. Your report is also prepared so you can hand it directly to your doctor at home.

Should I be treated in my home country or in Turkey — what is the difference?

In conization the difference between your home country and Turkey is not quality but access and cost. The colposcopy equipment, the LEEP and cold-knife techniques and the international guidelines used in Europe are the same ones applied in Turkey; the gap comes from the exchange rate and lower operating costs, which lower the price rather than the standard. For many women the added difference is being able to resolve an anxious abnormal-smear result quickly and with the same doctor throughout, instead of waiting weeks or months for each step.

How does the treatment process, stay and follow-up work from abroad?

For patients coming from abroad, the process begins with a digital assessment before travel and is completed with a short stay in Turkey. First you share your smear, HPV result and any colposcopy or biopsy report, and in an online pre-consultation we discuss the likely plan and the approximate cost. Once conization is planned, a stay of about 3 to 5 days in Turkey is usually enough, covering any final assessment, the procedure and a first check. Because conization is a short procedure, a flight home is often possible within a few days — frequently about 2 to 3 days afterwards — and we confirm the timing with you after the procedure.