LEEP and colposcopy

If you are reading this because a Pap or HPV test came back abnormal, begin here: an abnormal cervical screening result is common, and it is not cancer. It usually means HPV has produced changes in the surface cells of the cervix, and most of those changes resolve on their own. Colposcopy is the examination that establishes which category you are in. LEEP is a short office procedure used when a biopsy shows changes serious enough to remove rather than watch. Most women who have a colposcopy never go on to need a LEEP at all.

An abnormal result is a starting point, not a diagnosis

Cervical screening is deliberately sensitive, set to flag changes long before they could become dangerous. Many women have an abnormal result at some point, and the overwhelming majority reflect an HPV infection and reversible cell changes that clear within a year or two as the immune system clears the virus. What follows an abnormal Pap exists to find the few changes that persist and progress, and to leave the rest alone.

The vocabulary is worth knowing, because the words alarm people out of context. ASC-US means atypical cells of uncertain significance, the mildest abnormality there is. LSIL is a low-grade change, essentially the signature of an active HPV infection; HSIL is a high-grade change and the result that most often leads to treatment. None of these means cancer, and the biopsy taken at colposcopy is what establishes what is in the tissue.

Why one woman is watched and another has colposcopy

Cervical management here follows the ASCCP risk-based guidelines, whose central feature is that no simple rule ties one Pap result to one next step. The recommendation comes from an estimate of your risk of having, or developing, a high-grade precancerous lesion. That estimate combines the cytology, the HPV result and whether HPV 16 or 18 is present, and your history - previous results, whether HPV has persisted, and whether you have been treated before. Two women with identical Pap reports can correctly be given different plans.

In practice, a mildly abnormal Pap with a negative HPV test is often simply repeated in a year, while the same cytology with HPV 16 present goes straight to colposcopy. Persistence of HPV across tests raises your risk even when the cytology looks unremarkable, because duration of infection drives progression. We will show you where you sit, since observation is easier to accept when you can see the reasoning.

What colposcopy is actually like

Colposcopy is an office examination rather than surgery, and it takes ten to fifteen minutes. You lie as you would for a Pap, a speculum is placed, and the colposcope - a magnifying instrument on a stand that stays outside your body - is positioned to view the cervix. Dilute acetic acid, essentially vinegar, is applied on a swab, and abnormal areas turn white under it, which is what allows them to be targeted. The acid can sting or feel cold.

Most women find the examination no worse than a Pap until the biopsy, and ibuprofen an hour beforehand is worth taking. It is best not scheduled during your period, though light bleeding does not prevent it. Colposcopy is safe in pregnancy, where biopsy is more selective and endocervical sampling is omitted.

Biopsy and endocervical sampling

If an abnormal area is identified, a small piece of tissue is taken with fine forceps. It feels like a sharp pinch, lasts a second or two, and is over before most people finish bracing for it. An endocervical curettage samples the canal just above what can be seen, because disease can sit out of view there, and it produces a deeper cramp. A paste applied afterward leaves a dark, coffee-ground-like discharge, and expect spotting and cramping for the rest of the day.

Reading the biopsy: CIN 1, 2 and 3

Biopsy results are graded as cervical intraepithelial neoplasia, by how much of the surface layer is occupied by abnormal cells. CIN 1 involves the lower third and is the tissue equivalent of an active HPV infection. CIN 2 involves up to two-thirds and CIN 3 nearly the full thickness; both are high-grade, and CIN 3 is the true precancer, with a real chance of becoming invasive cancer if left for years. None of them is cancer, and the word neoplasia frightens people for no good reason.

CIN 1 is observed rather than treated, and that is a deliberate position rather than a timid one. Most of it regresses as the immune system clears the virus, so treating it would mean a procedure with real consequences on a lesion that was going to disappear. The plan is repeat testing, usually HPV-based, with treatment considered only if changes persist for two years or a high-grade cytology contradicts the biopsy. CIN 3 is treated, while CIN 2 is the honest gray zone, where observation is legitimate in a woman under 25 or one who will reliably return.

The purpose of cervical screening was never to find abnormal cells. It was to prevent cervical cancer, and much of doing that well consists of knowing which abnormalities to leave alone.

The LEEP itself

A loop electrosurgical excision procedure removes the zone of the cervix where the abnormal cells sit, using a thin wire loop carrying a current that cuts and seals at once. It is both treatment and diagnosis, since the tissue goes to pathology and the result sometimes differs from the biopsy. It is usually done in the office under local anesthetic, and the visit takes under an hour.

The cervix is numbed with an injected local anesthetic, usually combined with a medication that limits bleeding, and that stinging injection is the part most women rate as the worst of it. You will feel pressure and a period-like cramp, a vibration from the instrument, a smell of cautery and the noise of a suction device, all better known in advance. General anesthesia is reserved for a lesion extending well up the canal, a cervix that cannot be exposed, or a patient who would rather be asleep.

Afterward, expect a dark or watery discharge for two to three weeks as the scab on the cervix separates, and light bleeding that may briefly increase around a week to ten days in. Cramping settles within a day or two with ordinary anti-inflammatories. Heavy bleeding that soaks a pad in an hour, fever or severe pain are uncommon and are the reasons to call rather than wait.

• Nothing in the vagina for four weeks: no tampons, intercourse, douching.
• Showers rather than baths, and no pools or hot tubs for four weeks.
• No heavy lifting or hard exercise for two weeks, then resume as you feel able.
• Use pads, and expect bleeding to come and go rather than taper.
• Expect a call with your pathology result within a week to ten days.

Margins and the follow-up that matters

The pathology report states whether abnormal tissue extended to the edge of what was removed. An involved margin does not mean the procedure failed or that a second is needed, since the current destroys a further rim beyond the cut; it means residual disease is more likely and you will be watched more closely. Surveillance after treatment for high-grade disease is HPV-based, starting around six months and continuing for years, because the elevated risk persists for at least two decades. Patients lose track of that long tail on changing doctors, so we keep an explicit recall.

If you want to be pregnant later

This deserves a straight answer, since it is the question most often asked at the end of the visit. Excisional treatment of the cervix is associated with increased risk of preterm birth and of preterm prelabor rupture of membranes in a later pregnancy. That risk tracks with how much tissue is removed and how deep the excision goes, so a single shallow LEEP carries a much smaller increase than a deep or repeated excision. In absolute terms the risk after one standard LEEP stays low, weighed against leaving a precancer in place.

What follows is practical rather than frightening. It is a reason to be conservative about treating CIN 1, to consider observation for CIN 2 in a younger woman who will return, and for any excision to be no deeper than it needs to be. If you are planning a pregnancy, say so, and keep your pathology report for your obstetrician. Cervical insufficiency after a single LEEP is uncommon and cerclage is not indicated on that basis alone, though some obstetricians monitor cervical length by ultrasound.