Colposcopy: What Actually Happens, Step by Step

"They've sent me for a colposcopy. I looked it up and now I can't sleep."

Most of the fear around this appointment comes from the word. It sounds surgical. It is not. A colposcopy is a doctor looking at your cervix through a magnifying instrument for about a quarter of an hour, and it is one of the more undramatic things that happens in gynaecology.

Here is exactly what happens, in the order it happens, so that nothing on the day is a surprise.

Why have I been referred?

Because something on a screening test warrants a closer look than a smear can give. Common reasons:

• An abnormal Pap smear, particularly a high-grade result such as HSIL, ASC-H or AGC.
• A positive high-risk HPV test, especially HPV 16 or 18, which carry the highest risk.
• A cervix that looked abnormal during a routine examination.
• Persistent unexplained bleeding, particularly bleeding after sex.
• Follow-up after previous treatment for cervical cell changes.

Note what is not on that list: a diagnosis. Referral is an instruction to look, not a conclusion about what will be found. Our guide to what an abnormal result actually means covers the terminology if your report has left you guessing.

Is a colposcopy an operation?

No. There is no cut, no stitch, no general anaesthetic and no admission. You walk in, you have an examination similar to a smear but longer, and you walk out.

The colposcope itself is the part people misunderstand most. It is a binocular magnifier on a stand with a bright light, positioned outside your body at roughly arm's length. It never enters you. The only thing inside you is the speculum, exactly as for a smear.

How should I prepare?

• Avoid the appointment during your period if you can. Blood makes the view harder.
• No intercourse, tampons or vaginal medicines for about 48 hours beforehand.
• Consider a simple painkiller such as paracetamol or ibuprofen an hour before. It takes the edge off cramping if a biopsy is taken.
• Bring a sanitary pad for afterwards. There is usually some discharge or light spotting.
• Tell them if you are or might be pregnant, because it changes what is done.
• Bring your reports — the smear and HPV results, and any previous colposcopy notes.

You can eat and drink normally. There is no fasting and no preparation beyond the above.

What actually happens, step by step

Why do they put vinegar on my cervix?

Because it makes the invisible visible, and it is genuinely clever.

Cells that have been altered by HPV have a denser protein content than healthy cells. When dilute acetic acid is applied, those abnormal cells dehydrate and temporarily turn white — what doctors call acetowhite change — while normal tissue stays pink. That contrast is what the doctor is looking at, and it is why the solution needs a minute or two to work rather than being wiped straight off.

It stings slightly for some women and not at all for others. It causes no damage and the effect wears off.

Does a colposcopy hurt?

The examination itself should not. Expect pressure from the speculum and possibly a mild sting from the acetic acid. Many women feel nothing beyond the speculum.

If a biopsy is taken, that is the moment you feel. Most describe a sharp pinch or a strong period cramp lasting a second or two, followed by dull cramping for a few hours. Some women feel very little. Taking a painkiller beforehand genuinely helps.

If it is hurting more than that, say so during the appointment rather than afterwards. Tension makes it worse, and being told what is happening before it happens helps most women more than they expect.

What is an "inadequate" or "unsatisfactory" colposcopy?

This phrase alarms people unnecessarily. It does not mean anything bad was found. It means the doctor could not see the whole area that needed seeing.

The critical area is the transformation zone — the border where one type of cervical cell meets another. It is where HPV-related changes almost always begin. If that border sits up inside the cervical canal rather than on the surface, it cannot be fully seen, and the examination is called inadequate.

This is common after menopause — roughly a quarter of postmenopausal women — because the border retreats inward with age and tissue becomes thinner. A short course of vaginal oestrogen before the examination often improves the view considerably, and is worth asking about if you are past menopause and have been told the view was poor.

How accurate is colposcopy?

Here is the part most articles leave out, and I would rather you heard it from a doctor than found it yourself later.

Colposcopy is a skilled visual assessment, and it is not perfect. Studies show only moderate agreement between what the colposcopist thinks they are seeing and what the laboratory finds in the tissue. In one major trial, the sensitivity of an initial colposcopy for detecting high-grade disease within the following two years was around 53%.

Three consequences worth understanding:

• Who does it matters. This is an operator-dependent examination, and experience genuinely changes the result.
• Biopsies matter more than impressions. The tissue result is the answer, not what the cervix looked like on the day.
• A normal colposcopy does not end your follow-up. You will still be brought back for repeat testing, and that is not excessive caution — it is how the imperfection is managed.

None of this is a reason to avoid the test. It is the reason the whole system is built on repeated testing over time rather than a single verdict.

What happens afterwards?

If no biopsy was taken, you can resume everything immediately, including sex.

If a biopsy was taken, expect:

• Light bleeding or spotting for a few days.
• A dark or coffee-coloured discharge — this is the solution used to stop bleeding, not old blood, and it surprises people who were not warned.
• Mild cramping for a few hours, helped by a simple painkiller.
• Avoiding intercourse, tampons and swimming for the period you are told, usually about a week.

Biopsy results typically take two to ten days. Before you leave, make sure you know when they will be ready and how you will receive them — the waiting is worse when nobody has told you how long it will be.

When should I call someone?

Complications are rare, but get in touch promptly for:

• Bleeding heavier than a normal period, or passing clots.
• Severe pelvic pain not settling with a simple painkiller.
• Fever, or a foul-smelling discharge — possible signs of infection.

What if I am pregnant?

Colposcopy can be performed safely in pregnancy, and being pregnant is not a reason to postpone assessment if it is genuinely needed.

Two things change. Endocervical curettage — sampling from inside the cervical canal — is not done during pregnancy, because of the risk to the pregnancy. And biopsy generally is minimised or avoided unless there is real concern about invasive disease. Treatment is almost always deferred until after delivery, with reassessment a few months afterwards.

Tell whoever is doing the colposcopy that you are pregnant, or might be, before it starts.

Where colposcopy happens for our patients

To be clear about how this works with us: Pap smears, HPV DNA testing and HPV vaccination are done at the clinic. Colposcopy and any treatment for cervical cell changes are carried out at hospital as a day-care appointment.

What we do is arrange it, so that the referral is not a slip of paper handed to you at the end of an appointment. Your results come back to the doctor who already knows your history, the follow-up plan is made by the same person, and you are not explaining your story again from the beginning to somebody new.

Our two clinics — Sector 51 (Mayfield Garden) and Sector 56 — see patients from across Gurugram, Golf Course Road, Golf Course Extension, Sohna Road, the DLF Phases, South Delhi and nearby NCR, 7 days a week including Sundays.

You can also book on WhatsApp here or through our contact form. Our companion guides cover cervical screening and HPV, the test and the vaccine.

The bottom line

A colposcopy is fifteen minutes of being looked at closely by someone who knows what they are looking for. It is not surgery, the instrument does not touch you, and most women find the anticipation considerably worse than the event.

Go. Take a painkiller beforehand, take a pad, ask what they can see while they are looking, and leave knowing when your results will arrive.

And if the appointment has been sitting in your diary for weeks while you decide whether to attend — that delay is the only part of this whole process that carries any real risk.