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Cervical procedures and fertility

Fertility After a — Cone Biopsy or LEEP

Most women who have had a cone biopsy or LEEP can get pregnant. The question that is often not discussed at the time of the procedure is a different one: whether it changes the risk once you are pregnant, and what to do about it.

Medically reviewed by Dr. T. Raghavender Reddy, Medical Oncologist, MBBS · DM (Medical Oncology) · MD (Radiation Oncology) · Last reviewed September 2026

  • Conception is usually not affected — The procedure removes tissue from the cervix. It does not touch the uterus, the ovaries, or the fallopian tubes.
  • Preterm birth risk is real — RCOG and ACOG both recognise that cervical excision procedures are associated with an increased risk of early birth.
  • The amount removed matters — Risk is greater when more tissue is taken, or when the procedure is repeated.
  • Early disclosure protects you — Telling your obstetrician before or at your first antenatal visit is the single most useful step you can take.
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Cone biopsy and LEEP do not usually prevent you from conceiving. Both procedures are associated with an increased risk of early birth, particularly when a significant amount of cervical tissue was removed. Most pregnancies after these procedures go to full term. Telling your obstetrician about the procedure early allows them to watch for the risk.

Does cone biopsy or LEEP affect your chances of getting pregnant?

Most women who have had one of these procedures conceive without difficulty. The procedure removes tissue from the surface of the cervix. It does not touch the uterus, the fallopian tubes, or the ovaries.

The cervical channel remains open after treatment. There is a small possibility of scarring that, in rare cases, narrows that channel — but this is uncommon after a single, straightforward procedure.

If you have been trying to conceive for a year without success after a cone biopsy or LEEP, tell your gynaecologist specifically about the procedure. It is one of several things they will want to know.

The more significant long-term concern is not whether you can conceive — it is the risk of early birth once you are pregnant. RCOG and ACOG guidance recognises this association. It is manageable when your obstetrician knows about it from the start.

What do terms like cone biopsy, LEEP and cervical length mean?

LEEP (or LLETZ)
Loop electrosurgical excision procedure — uses a thin wire loop and electrical current to remove abnormal cervical tissue. Done under local anaesthetic as an outpatient procedure. Called LLETZ in the UK and in some Indian hospitals.
Cone biopsy (conisation)
Removes a cone-shaped piece of tissue from the cervix, usually under general or spinal anaesthesia. It typically removes more tissue than LEEP and is used when the abnormality extends higher into the cervical canal.
Cervical length
The measurement of your cervix taken by transvaginal ultrasound during pregnancy. A shorter cervix is a recognised risk factor for preterm birth, and this is one of the things your obstetrician may choose to monitor in your pregnancy.
Preterm birth
Birth before 37 completed weeks of pregnancy. A history of cervical excision procedures is a recognised risk factor, particularly after deep or repeat procedures, according to RCOG and ACOG guidance.
Cervical cerclage
A stitch placed around the cervix during pregnancy to help keep it closed. Sometimes offered when cervical length monitoring shows significant shortening during pregnancy.

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What exactly should you tell your obstetrician?

  • Tell them you have had a cone biopsy or LEEP, even if it was years ago.
  • Say whether you had one procedure or more than one.
  • Bring your histology report if you have it — it may record how much tissue was removed.
  • Mention whether it was a LEEP or a cone biopsy, as the amount of tissue removed differs.
  • Tell them the approximate year the procedure was done.
  • Say if you had any complications afterwards, such as heavy bleeding or a suspected infection.
  • Ask whether cervical length monitoring is recommended for your pregnancy.

Will you need extra monitoring during pregnancy?

Whether your obstetrician recommends monitoring depends mainly on how much cervical tissue was removed and how many procedures you have had. A single LEEP that removed a small amount of tissue carries a lower risk than a deep cone biopsy or a repeat procedure.

Where monitoring is recommended, it usually involves transvaginal ultrasound to measure cervical length at intervals during the second trimester. This is a standard scan, not a complicated investigation.

If your cervical length shortens significantly during monitoring, your obstetrician may discuss options such as progesterone supplementation or, in some situations, a cervical cerclage. These decisions are made case by case.

An early birth after a cervical procedure is not inevitable, and it is not your fault. The procedure was done to treat a real risk — an abnormality that, left untreated, can progress. Monitoring exists so that any increased risk can be watched and acted on.

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Common questions

Frequently asked questions

How much does LEEP increase the risk of early birth?

There is no single figure that applies to every person, because the risk depends on how much tissue was removed and whether the procedure was done once or more than once. RCOG acknowledges that the risk is higher after deeper excisions and repeat procedures than after a single, shallow LEEP. The practical implication is not a number to worry about — it is that your obstetrician needs to know about the procedure so they can decide whether monitoring is appropriate for you specifically.

I had LEEP years ago and nobody mentioned this to me. What should I do now?

Tell your obstetrician at your first antenatal appointment, or before you start trying if you have not yet conceived. The timing of the procedure matters less than the fact that it happened — years between the procedure and the pregnancy do not cancel the association. If you feel this was not explained to you at the time, that is worth raising with your team. The immediate priority, though, is making sure your current or future obstetric care has the full picture.

Does it matter whether I had one procedure or two?

Yes. A single LEEP generally removes less tissue than a repeat procedure or a cone biopsy, and the amount of tissue removed is the main factor associated with preterm birth risk. If you had more than one procedure, or a cone biopsy after a previous LEEP, your obstetrician needs to know that specifically. Bring any documentation you have from the time of each procedure, even if it is just a discharge letter.

Can I have a normal vaginal birth after a cone biopsy?

In most cases, yes. A cone biopsy does not prevent vaginal birth. Rarely, scarring at the cervix can affect how the cervix dilates in labour, and your obstetric team will be aware of this as your pregnancy progresses. The decision about how you give birth is based on your whole clinical picture, not on the cone biopsy alone. Discuss it with your obstetrician as part of your birth planning rather than assuming either way.

Should I tell my midwife as well as my obstetrician?

Yes — tell everyone involved in your antenatal care. In India, your care may be shared between a gynaecologist and a hospital team, and the information needs to reach whoever is managing your antenatal risk assessment. Do not assume that one person will pass it on. Say it directly to each person who sees you, and make sure it is recorded in your antenatal notes so it follows you if you change hospitals.

What if I had the procedure in another city and do not have the records?

Tell your obstetrician what you do remember: approximately when it happened, whether it was called a LEEP or a cone biopsy, and whether it was done more than once. Even without records, that information is useful and your obstetrician can make a clinical judgement about what level of monitoring is appropriate. If you know which hospital performed the procedure, you or your current team can request a copy of the records — most hospitals retain pathology reports for several years.

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