Pulling out a catheter, whether accidentally or deliberately, can cause injuries ranging from minor bleeding and pain to life-threatening hemorrhage, air embolism, or interrupted drug therapy, depending on which type of catheter is involved and how forcefully it comes out. “Catheter” is a broad term covering urinary drainage tubes, intravenous lines, arterial monitors, epidural pain-relief catheters, feeding tubes, and more. The consequences vary enormously by type, but the event is common enough in hospitals that it has its own clinical shorthand: accidental catheter removal, or ACR.
Urinary Catheters and the Balloon Problem
When most people picture a catheter being pulled out, they are thinking of a Foley catheter, the flexible tube threaded through the urethra into the bladder. A Foley has a small balloon near its tip that is inflated with sterile water once it is inside the bladder, anchoring the tube in place. During a proper removal, a nurse deflates the balloon first, and the catheter slides out with minimal resistance. When someone yanks the catheter out while the balloon is still inflated, the balloon drags through the urethra and can tear the tissue on the way out.
The immediate result is usually pain and bleeding from the urethra. In mild cases, the bleeding stops on its own within minutes. In severe cases, the balloon can rip through the urethral wall entirely. A case report describes a 76-year-old man who arrived at an emergency department with acute urethral bleeding, large-scale bruising of the scrotum and perineum, and blood at the urethral opening after his Foley catheter was pulled out with the balloon still inflated. He was in hypovolemic shock from blood loss, with imaging showing active hemorrhage and a blood clot inside the bladder.1PubMed Central. Urethral Injury Resulting in Hypovolemic Shock Following Traumatic Foley Catheter Removal That outcome is extreme but not unheard-of in older patients or those on blood thinners.
Even when the immediate injury heals, the urethra can scar as it repairs itself. Scar tissue narrows the channel, a condition called a urethral stricture. In a multi-hospital study of catheter-related urethral injuries, about a quarter of patients were performing weekly self-dilation afterward to keep the passage open, and roughly one in ten needed a surgical procedure to treat persistent narrowing.2PubMed. Incidence, Cost, Complications and Clinical Outcomes of Iatrogenic Urethral Catheterization Injuries: A Prospective Multi-Institutional Study This means a single traumatic catheter removal can create a recurring problem that requires ongoing management for months or years.
How Much Damage Does the Balloon Actually Do?
You might wonder whether the design of the catheter itself contributes to the severity of these injuries. Researchers have studied this directly. In an animal trial comparing standard Foley catheters to a prototype designed to cause less trauma on removal, evidence of urethral damage appeared in nearly all subjects with the standard Foley design. Deep lacerations or complete urethral disruption occurred exclusively in the standard catheter group and were found in four out of every five animals in that arm of the trial.3PubMed. In Vivo Trial of a Novel Atraumatic Urinary Catheter Design for Prevention of Catheter-Induced Trauma The inflated balloon is the single biggest contributor to injury. Without it, urethral tissue has a fair chance of surviving the removal with only minor irritation.
Patients who have experienced a traumatic Foley removal describe the pain in vivid terms. In surveys about catheter experiences, some rated the pain at the highest level on the scale, and at least one patient reported that a nurse inadvertently pushed the catheter deeper into the bladder while struggling to remove it, ultimately requiring a physician to complete the procedure.4American Journal of Infection Control. What Do Patients Say About Their Experience with Urinary Catheters and Peripherally Inserted Central Catheters? These accounts underline that even planned removals can go wrong when technique is poor.
Central Venous Catheters and Air Embolism
Central venous catheters sit in large veins near the heart, often in the neck, chest, or groin. They are used to deliver medications, nutrition, or dialysis fluids that would damage smaller veins. Pulling one of these out creates a different set of dangers from a urinary catheter, because the opening left behind connects the large vein directly to the outside air.
The main risk specific to central line removal is venous air embolism. If the patient breathes in while the catheter tract is open, air can be sucked into the vein and travel to the heart or lungs. Even a small volume of air can disrupt heart rhythm, and a large bolus can be fatal. A case report documented a massive air embolism during the removal of a central venous catheter, noting that even minor carelessness during the process can lead to air entering the venous system, sometimes accompanied by arterial embolism as well.5PubMed Central. Massive air embolism while removing a central venous catheter This is why proper removal technique has the patient lie flat, hold their breath, and bear down while the catheter is withdrawn. An accidental or patient-initiated removal skips all of those precautions.
Beyond air embolism, a pulled central line can bleed significantly from the insertion site, especially from femoral (groin) catheters, where bleeding can track into the space behind the abdomen. Retroperitoneal hemorrhage from femoral access sites is uncommon but serious, sometimes requiring surgical or interventional repair if pressure alone does not control the bleeding.6PubMed Central. Retroperitoneal hemorrhage as a complication of percutaneous intervention: report of 2 cases and review of the literature There is also the immediate loss of whatever lifesaving medication was running through the line. A patient on vasopressors to maintain blood pressure, for example, can crash within minutes if those drugs are abruptly interrupted.7PubMed Central. Accidental catheter removal in critically ill patients: a prospective and observational study
When a Piece of the Catheter Stays Behind
A catheter that is cut, snapped, or sheared during removal can leave a fragment inside the body. This is rare but well documented. In one case, a hemodialysis patient inadvertently severed the end of their own central venous catheter, leading to a pulmonary venous air embolism as air entered through the damaged line.8PubMed. Pulmonary venous air embolism following accidental patient laceration of a hemodialysis catheter In a hospital setting, an arterial catheter that was accidentally cut during suture removal left a fragment lodged inside the radial artery, requiring a separate surgical procedure to retrieve it.9PubMed Central. Case Report: Transection of Radial Arterial Catheter Requiring Surgical Intervention
Retained catheter fragments are dangerous because they can migrate through blood vessels and lodge in the heart, lungs, or major veins. Even fragments that initially seem stable can shift position over days. Retrieval usually involves an interventional procedure using fluoroscopy to guide a snare device to the fragment, though open surgery is sometimes necessary when the fragment is embedded in a vessel wall.
Feeding Tubes and Gastrostomy Sites
A PEG tube (percutaneous endoscopic gastrostomy) passes through the abdominal wall directly into the stomach. It is held in place by an internal bumper or balloon resting against the stomach lining. If the tube is pulled out, the immediate concern is that stomach contents, acid and partially digested food, can leak through the hole into the abdominal cavity, potentially causing peritonitis. The tract between the skin and the stomach closes surprisingly quickly, sometimes within hours, so a replacement needs to happen fast.
Bleeding is also a real risk. In one case, a patient who accidentally pulled out his PEG tube developed a massive submucosal hematoma in the stomach wall, followed by vomiting blood that was aspirated into the lungs and caused aspiration pneumonia.10Digestive Endoscopy. Huge submucosal hematoma of the stomach after accidental removal of the PErcutaneous endoscopic gastrostomy tube The combination of hemorrhage and aspiration makes accidental PEG removal one of the more dangerous tube-pulling events in hospitalized patients.
Other Tubes and Lines
The spectrum of “catheters” extends well beyond the types people commonly think of, and each has its own consequences when removed improperly.
- Chest drains: These tubes sit between the lung and the chest wall, draining air or fluid. Pulling one out can allow air back into that space, collapsing the lung (pneumothorax). Blood can also accumulate (hemothorax). Both can be life-threatening if not addressed quickly.7PubMed Central. Accidental catheter removal in critically ill patients: a prospective and observational study
- Epidural catheters: These deliver pain medication near the spinal cord. Removal is usually straightforward, but complications can include catheter breakage, leaving a fragment in the epidural space, or worsening of a spinal fluid leak if the membrane around the spinal cord was punctured during placement.11PubMed Central. Intermittent Cerebrospinal Leak After Inadvertent Dural Puncture During Epidural Catheter Placement for Postoperative Analgesia
- Abdominal drains: Surgical drains placed in the abdomen after operations can allow blood and infected fluid to accumulate when prematurely removed, sometimes progressing to sepsis.7PubMed Central. Accidental catheter removal in critically ill patients: a prospective and observational study
- Peripheral IVs: A standard IV in the hand or arm is the lowest-stakes catheter to pull out. You get a small puncture wound that usually stops bleeding with a few minutes of pressure. The risk is mainly bruising or, rarely, a clot at the site. But if certain medications were infusing when the line came out, the fluid leaking into surrounding tissue (extravasation) can cause local damage depending on the drug involved.12PubMed Central. Extravasation injuries in adults
Why It Happens So Often in Hospitals
Patients pulling out their own catheters and tubes is one of the most common adverse events in intensive care units. It is not usually deliberate sabotage. The biggest predictor is delirium, the confused, disoriented state that affects many critically ill patients. A large retrospective study found that a history of delirium was the strongest independent risk factor for self-removal of medical devices, with patients who had delirium being about three times more likely to pull something out. A history of alcohol withdrawal roughly doubled the risk, and a history of drug abuse raised it by about 70 percent.13PubMed Central. Self-Removal of Medical Devices in the ICU: A Retrospective Study
Other contributing factors include inadequate sedation, physical discomfort from the catheter itself, poor securement (the tube was not properly taped or anchored), and the simple mechanics of a confused patient pulling at anything attached to their body during routine movements. Night shifts, when staffing ratios are lower and patients are more likely to become confused, tend to see higher rates. The problem is significant enough that one estimate put the annual cost of patient-initiated device removal in a single 42-bed ICU at more than $250,000, with an average per-event cost of around $181.14PubMed. The frequency and cost of patient-initiated device removal in the ICU
How Hospitals Try to Prevent It
Prevention strategies fall into two categories: keeping the catheter physically secured, and managing the patient’s mental state to reduce the urge to pull.
On the securement side, newer anchoring devices have shown real improvements over traditional adhesive tape and sutures. A multicenter trial comparing a subcutaneous anchor device to standard adhesive dressings in pediatric patients with long-term central venous access found that the anchor reduced dislodgement rates by more than four-fold, from roughly 23 percent with adhesive alone down to about 5 percent. The anchored group also had fewer complications at the dressing site, and dressing changes were faster by about 40 percent.15PubMed Central. A comprehensive review of catheter dislodgement: prevalence, clinical impact, and innovations in securement devices For cerebrospinal fluid catheters, a subcutaneous anchoring system eliminated accidental pullouts entirely in one clinical series.16PubMed. Securing CSF catheters to the skin: from sutures and bolt system to subcutaneous anchoring device towards zero complications
On the patient side, the approach centers on early identification and treatment of delirium, appropriate use of sedation, and physical measures like soft wrist restraints in high-risk patients (though restraints come with their own complications and ethical considerations). Frequent nursing assessment helps catch a patient reaching for lines before they succeed. Some units have adopted “bundled” protocols that combine secure dressings, delirium screening, staff education, and patient orientation cues to reduce unplanned removals.
What to Do If a Catheter Comes Out
If you are caring for someone at home and a catheter comes out, the response depends entirely on which type it is. A standard peripheral IV that falls out during a shower is a non-event. Apply pressure with a clean cloth for a few minutes and notify the home health nurse at the next opportunity. A urinary catheter that is pulled out warrants an urgent call to the healthcare provider, particularly if there is significant bleeding, inability to urinate, or swelling. Do not try to reinsert a Foley catheter yourself. Urethral reinsertion by an untrained person risks creating a false passage through damaged tissue.
A suprapubic catheter that falls out of its abdominal tract is more time-sensitive. The tract can start to close within a few hours, making reinsertion progressively more difficult. If you have been trained to replace it and have a spare, doing so promptly preserves the tract. If not, cover the site with a clean dressing and get to an emergency department quickly.
For a PEG tube, the same closing-tract urgency applies. Some patients or caregivers keep a spare replacement tube at home for exactly this situation. If a Foley catheter-style tube is placed into the tract temporarily to keep it open, it buys time to get professional help. In all cases, keep the site clean, note the time the tube came out, and save the removed device so the medical team can inspect it.
For any central venous catheter, arterial line, or chest drain that comes out, the situation is a medical emergency. Apply firm pressure to the site, call for help immediately, and if a central line site is exposed, keep the patient flat to reduce the risk of air entering the vein. These are not situations for home management.
Can a Catheter Simply Be Reinserted?
Sometimes. For interventional radiology catheters and certain drainage tubes, access through the original tract can occasionally be regained without having to puncture a new site, especially if the catheter was only partially dislodged.17Radiographics. Management of visceral interventional radiology catheters: a troubleshooting guide for interventional radiologists But reinsertion is not just a matter of threading the tube back in. The original site may have been contaminated during the removal, raising the risk of introducing bacteria into the bloodstream or peritoneal cavity. For central venous catheters, reinsertion often means a new puncture at a different site to avoid complications at the old one. For urinary catheters after traumatic removal, a urologist may opt for a suprapubic approach instead of going through the injured urethra again.
Newborns and Small Children
Accidental catheter removal is a persistent challenge in neonatal intensive care units, where patients are tiny, active, and unable to understand why they have tubes attached to them. In a study of peripherally inserted central catheters (PICCs) in newborns, accidental removal accounted for about 5 percent of all catheter removals, with bloodstream infections and line blockages being more common reasons for taking lines out.18SciELO – Scientific Electronic Library Online (Revista Latino-Americana de Enfermagem). The development of a risk score for unplanned removal of peripherally inserted central catheter in newborns Five percent sounds low, but in a busy NICU it adds up to frequent events, each requiring a new, technically difficult line placement in a very small patient. Neonatal nurses use transparent dressings, limb boards, and careful positioning to minimize the risk, but no strategy eliminates it entirely when the patient weighs a few pounds and can pull with surprising force.
The stakes in small children are also proportionally higher. A volume of blood loss that an adult could easily tolerate can cause hemodynamic instability in an infant. Air embolism thresholds are lower as well, because the blood volume and cardiac output are so much smaller. This is part of why pediatric-specific securement devices have been the focus of recent engineering research, with the subcutaneous anchor trials showing such a dramatic reduction in dislodgement rates among children.
When Pulling a Catheter Out Is Actually the Right Call
Not all self-removals are errors. There is a recognized phenomenon in hospitals where a patient pulls out a urinary catheter and the clinical team, upon reflection, realizes the catheter should have been removed the day before anyway. Studies on catheter-associated urinary tract infections consistently show that catheters stay in longer than medically necessary in a large proportion of patients. Nurse-driven removal protocols, where nurses can discontinue a catheter that no longer meets clinical criteria without waiting for a physician order, have reduced both catheter-days and infection rates in many hospitals. The problem is not always the pulling but the fact that the tube was still there to be pulled.
That said, there is a world of difference between a calm, planned removal after deflating the balloon and a delirious patient ripping the catheter out at three in the morning. The outcome is determined almost entirely by technique and context, not just by whether the device was still needed.