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How Copper-T Works

Dr Surya Goutham, BDS
5 minutes Read. Published: 19th Aug 2025

The Copper T is a reliable, hormone-free way to prevent pregnancy. It's a long-term option that works well for adults who haven’t gone through menopause and is also suitable for teenagers. Once it's inserted by a healthcare provider, it starts working right away and can stay in place for years, making it a convenient choice for those who prefer not to think about birth control daily. Let’s understand what is the function of Copper T through this blog.

Why Choose Copper T

Many people choose the Copper T because it fits easily into their lifestyle. There’s no need to pause or interrupt intimacy to use other forms of protection like condoms. Once inserted, it offers up to 10 years of pregnancy prevention. It can be removed at any time if you’re planning to get pregnant or simply want to switch methods. Since it’s hormone-free, it avoids side effects linked to hormonal birth control, such as mood changes or blood clots. It's also safe to use while breastfeeding. If you're considering this option, exploring the Copper T price can help you plan ahead.

When Copper T Might Not Be Right for You

While the Copper T is a great option for many, it’s not suitable for everyone. If you're already pregnant or might be, using the Copper T could raise the risk of miscarriage. Certain conditions, like large fibroids, can make it hard for the device to stay in place. If you have a pelvic infection, endometriosis, or are undergoing treatment for uterine or cervical cancer, your doctor may recommend waiting or choosing another method. Unexplained vaginal bleeding, an allergy to copper or any component of the device, or a rare condition called Wilson’s disease (which causes copper to build up in the body) are also reasons the Copper T might not be the best fit for you.

How Copper T Works to Prevent Pregnancy

A Copper T is a small plastic device shaped like a “T” and wrapped in a thin copper wire. Sperm don’t react well to copper, so they tend to avoid it. This helps stop them from reaching and fertilising an egg meaning pregnancy can’t happen. The copper also changes the cervical mucus and the lining of the uterus, making it harder for sperm to survive or move around.

In some cases, a doctor may recommend using a Copper T as emergency birth control. If it's inserted within five days of having unprotected sex, it can greatly lower the chances of an unplanned pregnancy.

Clinical Functions and Effectiveness of Copper T

The Copper T is over 99% effective at preventing pregnancy, making it one of the most reliable birth control options available. The only other methods with similar effectiveness are the hormonal IUD and the birth control implant.

To put things in perspective, here’s how some other methods compare when used correctly:

Birth control shot (Depo-Provera): About 96% effective

Pill, patch, or vaginal ring: Around 93% effective

Condoms: About 86% effective

One of the biggest reasons the Copper T works so well is that there’s very little chance of user error. Once it’s placed by a doctor, it does its job without you needing to remember anything daily, weekly, or even monthly.

How is Copper T Inserted?

The Copper T is placed inside your uterus by a trained doctor or nurse. You may be offered a local anaesthetic to numb the area, or light sedation if you're feeling nervous or anxious. It's a good idea to eat something beforehand and arrange a ride home if you're feeling unsure about driving afterward. The healthcare provider will also ask about your medical history to ensure it’s safe to go ahead.

Before inserting the Copper T, the provider gently measures the length and position of your uterus using a thin instrument. This step ensures the device fits correctly and is placed safely.

Insertion Process – Step by Step

  1. You’ll lie on an exam table, similar to a Pap smear position.
  2. A speculum is used to gently open the vaginal walls.
  3. The cervix is cleaned, and sometimes a small tool is used to steady it.
  4. The provider inserts the Copper T into your uterus through the cervix using a slim applicator tube.
  5. Once in place, the tube is removed, and the strings are trimmed so they sit just at the top of the vagina.

Some people feel cramping or pressure during the procedure, which usually settles within a few minutes. Others may feel lightheaded or dizzy right after. It’s perfectly okay to rest at the clinic until you feel better. Mild cramps or spotting can occur for a few days. Most people are able to go about their normal day afterward, but taking it easy for the rest of the day is a good idea. You’ll also be shown how to check the string monthly to make sure the Copper T stays in place.

Using the Copper T: Monitoring and Patient Care

Understanding How to use Copper T is essential. The Copper T has a thin nylon string attached, which passes through the cervix into the top of your vagina. The string doesn’t hang out or get in the way it’s tucked high up, and you usually won’t feel it during daily activities. However, if you reach gently inside your vagina, you may be able to feel the string. This is a good way to check that the Copper T is still in place, especially once a month.

If the string feels shorter or longer than usual or if you can’t feel it at all it’s possible that the device has moved. In that case, it’s best to book a visit with your doctor or nurse to get it checked.

How is Copper T Removed?

To remove the Copper T, you’ll lie down on an exam table with your knees bent and legs apart just like during a pelvic exam. Your doctor will gently insert a tool called a speculum to open the vaginal walls and get a clear view of the cervix.

The Copper T has thin threads that usually hang just slightly through the cervix into the upper part of the vagina. Using a small grasping tool, your doctor will gently pull on these threads, and the device will slide out. As it comes out, the T-shaped arms of the Copper T naturally fold up, making the removal smooth and quick.

If the threads aren't visible or are hard to reach, your doctor may use a special hook or tool to locate and guide them out.

In rare cases, the device may not come out easily sometimes it can get slightly embedded in the wall of the uterus. If that happens, your doctor might give you medication to help soften and open the cervix and use a pair of forceps to remove the Copper T. In some cases, a thin, lighted scope (called a hysteroscope) may be used to look inside the uterus for safe removal. You’ll be given medicine to help keep you comfortable during the procedure.

Last updated: 19th Aug 2025
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