Cryosurgery of the cervix, also called cervical ablation, uses liquid nitrogen to treat irregular cells. It removes tissue that causes unusual bleeding. Newer treatments have mostly replaced it, but there are places and circumstances where it’s the best option available.
Advertisement
Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy
Cryosurgery of the cervix uses extremely cold chemicals (like liquid nitrogen or argon gas) to freeze and destroy irregular cells on your cervix. Cryosurgery of the cervix is one example of a treatment called cryotherapy. Other names for this treatment include cryoablation, cryosurgical ablation or cryo.
Advertisement
Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy
Newer technologies have replaced cryosurgery of the cervix in many areas of the United States. Healthcare providers prefer treatments like loop electrosurgical excision procedure (LEEP) for removing irregular cells on your cervix. But there are certain places and circumstances where it may still be a treatment option.
Your healthcare provider may suggest cervical cryotherapy if you have:
Cryosurgery takes place in your healthcare provider’s office while you’re awake.
Before the procedure, your healthcare provider may or may not use local anesthesia, a medication to numb just your cervix. Occasionally, you may also receive a sedative, which helps you relax. You don’t need to be asleep under general anesthesia.
Your provider may ask that you refrain from sexual intercourse or placing anything in your vagina for 24 to 48 hours before cryosurgery.
Cryosurgery is a procedure that uses chemicals to freeze and destroy cells so new ones can grow back in the same spot.
For cervical cryoablation, your healthcare provider will:
Advertisement
No, it shouldn’t be painful. You may feel some discomfort or light cramping, but you shouldn’t feel pain. Some people feel slightly dizzy or cold immediately after.
The procedure takes less than 10 minutes.
You’ll be able to go home the same day as treatment. You don’t need to recover or wait in a recovery room. You can take over-the-counter (OTC) pain relievers if you feel any discomfort.
It’s normal to leak a watery, slightly bloody substance from your vagina beginning right after the procedure. This happens because when the frozen cells thaw out, they either get reabsorbed or flushed out through your vagina. This discharge may last up to several weeks. You can wear a pad to catch the discharge. Don’t use tampons.
Your healthcare provider will want to see you for a follow-up appointment to make sure the cells were destroyed. Your provider may recommend any of the following to ensure cryosurgery removed the irregular cells.
Cryosurgery is noninvasive, so it involves less pain, bleeding and risk of other complications. It’s also less expensive and requires less time than other types of surgery.
It’s generally a good treatment if the irregular cells are on the surface of your cervix. If the cells cover a large area, extend toward your uterus or penetrate several layers of tissue, cryotherapy isn’t the best treatment option.
Cryoablation is generally safe, and it shouldn’t affect your ability to get pregnant later. But it may cause:
Advertisement
Side effects of cryotherapy are generally very mild. You may feel some soreness or cramping for a few hours afterward. Some people feel chilly or cold. Leaking a watery, slightly bloody substance from your vagina for several weeks afterward is completely normal.
Healthcare providers may have reservations about cryosurgery of the cervix in certain situations. Some of the drawbacks of cryosurgery on your cervix are:
Yes. Cryotherapy can remove precancerous cells on your cervix from HPV (human papillomavirus). But it also destroys the cells in the process. This means your provider can’t send it to a lab for analysis.
Cryosurgery of the cervix is effective about 90% of the time, and the irregular cells usually don’t come back. If they do, you may need another treatment to remove abnormal cells.
Most people can go back to their normal routines right away. Talk to your healthcare provider about how long you should rest or if you should avoid any activities.
Advertisement
Your provider will recommend avoiding vaginal intercourse, using tampons or placing anything in your vagina for up to three weeks. That can help your cervix heal and prevent infection.
It may take your cervix up to three weeks to heal after cryotherapy.
You should call your healthcare provider right away if you have certain symptoms after cervical cryotherapy. These symptoms could signal an infection or another complication:
Healthcare providers prefer LEEP over cryotherapy. The difference between LEEP and cryotherapy is that LEEP allows your provider to send the tissue to a lab for analysis. Cryosurgery freezes and destroys the tissue, which means it doesn’t let a pathologist analyze it for cancerous cells.
A note from Cleveland Clinic
If you have unusual bleeding in your cervix, cryosurgery may be an option your provider offers. The procedure uses extremely cold chemicals to freeze and destroy irregular cells and tissue.
Unlike other methods for removing irregular cells, cryosurgery doesn’t preserve the tissue, which means your provider can’t test it. It also isn’t precise and doesn’t penetrate several layers of your cervix.
Advertisement
Newer technologies have replaced cryotherapy of the cervix in many areas of the world. But there are places and circumstances where it may still be an option.
Last reviewed on 12/21/2023.
Learn more about the Health Library and our editorial process.