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Chest Tube Insertion (Thoracostomy)
Learn about chest tube insertion, why it's done, how to prepare for it, and what to expect during the procedure.

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What Is Chest Tube Insertion?

Chest tube insertion helps drain air, blood, or fluid from the pleural space, which is the space surrounding your lungs.

During chest tube insertion, a hollow plastic tube is inserted between your ribs and into the pleural space. The tube may be connected to a machine to help with the drainage. It will stay in place until the fluid, blood, or air is drained from your chest.

Chest tube insertion is typically an emergency procedure. It may also be done after surgery is performed on your organs, such as your lungs, or tissues in your chest cavity.

Chest tube insertion is also referred to as chest tube thoracostomy.

Why Is Chest Tube Insertion Performed?

You may need a chest tube if you have any of the following:

  • a collapsed lung
  • a lung infection
  • bleeding around your lung, especially after a trauma (such as a car accident)
  • fluid buildup due to another medical condition, such as cancer or pneumonia
  • an inability to breathe or difficulty breathing due to a buildup of fluid or air
  • surgery, especially lung, heart, or esophageal surgery

Inserting a chest tube may also help your doctor diagnose other conditions, such as lung damage or internal injuries after a trauma.

How Do I Prepare for Chest Tube Insertion?

Chest tube insertion is most commonly performed as an emergency procedure or after surgery, so there’s usually no way for you to prepare for it. Your doctor will ask for your consent to perform the procedure if you’re conscious. If you’re unconscious, they’ll explain why a chest tube was necessary after you wake up. 

In cases where it isn’t an emergency, your doctor will order a chest X-ray before chest tube insertion. This is done to help confirm whether fluid or air buildup is the cause of the problem and to determine if a chest tube is needed. Some other tests, such as a chest ultrasound or chest CT scan, may also be done to evaluate pleural fluid.

What Happens During Chest Tube Insertion?

A surgeon or someone who specializes in lung conditions and diseases called a pulmonary specialist will usually perform the chest tube insertion. During chest tube insertion, the following happens: 

  1. Your doctor will prepare a large area on the side of your chest, from your armpit down to your abdomen and across to your nipple. Preparation involves sterilizing the area and shaving any hair from the insertion site, if necessary.
  2. They may inject an anesthetic into your skin or give it to you intravenously, or through an IV, to numb the area. The medication will help make you more comfortable during the chest tube insertion, which can be painful. If you’re having major heart or lung surgery, you’ll likely be given general anesthesia and be put to sleep before the chest tube is inserted.
  3. Using a scalpel, your doctor will make a small (¼ to 1 ½ inch) incision between your ribs, near the upper part of your chest. Where they make the incision depends on the reason for the chest tube.
  4. Your doctor will then gently open a space into your chest cavity and guide the tube into your chest. Chest tubes come in various sizes for different conditions.
  5. Your doctor will stitch the chest tube in place to prevent it from moving. A sterile bandage will be applied over the insertion site. The tube is then attached to a special one-way drainage system that only allows air or fluid to flow out. This prevents the fluid or air from flowing back into the chest cavity. 

While the chest tube is in, you’ll probably need to stay in the hospital. A doctor or nurse will monitor your breathing and check for possible air leaks.

What Are the Risks Associated with Chest Tube Insertion?

Pain During Placement

Chest tube insertion is usually very painful. Your doctor will help manage your pain by injecting an anesthetic through an IV or directly into the chest tube site. You’ll be given either general anesthesia, which puts you to sleep, or local anesthesia, which numbs the area.


As with any invasive procedure, there’s a risk of infection. The use of sterile tools during the procedure helps reduce this risk.


A very small amount of bleeding can occur if a blood vessel is damaged when the chest tube is inserted.

Poor Tube Placement

In some cases, the chest tube can be placed too far inside or not far enough inside the pleural space. The tube may also fall out.

Serious Complications

Serious complications are rare, but they can include: 

  • bleeding into the pleural space
  • injury to the lung, diaphragm, or stomach
  • collapsed lung during tube removal

Removing the Chest Tube

The chest tube usually stays in for a few days. After your doctor is sure that no more fluid or air needs to be drained, the chest tube will be removed. 

The removal of the chest tube is usually performed quickly and without sedation. Your doctor will give you specific instructions on how to breathe when the tube is removed. In most cases, however, the chest tube will be removed as you’re holding your breath. This ensures extra air doesn’t get into your lungs.

After the chest tube is removed, a bandage will be applied over the insertion site. You may have a small scar.

Your doctor will likely schedule an X-ray at a later date to make sure that there isn’t another buildup of air or fluid inside your chest.

Written by: Danielle Moores
Edited by:
Medically Reviewed by:
Published: Jun 8, 2012
Published By: Healthline Networks, Inc.
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