Pneumothorax From Strenuous Exercise: Symptoms, Risks, and Emergency Steps
Minjin Park
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A sudden stabbing pain in the chest during a workout is easy to dismiss as a pulled muscle. You may assume that you lifted too much, ran too hard, or simply need to catch your breath. In rare cases, however, chest pain and shortness of breath during or after strenuous exercise can be signs of a pneumothorax—commonly called a collapsed lung.
Pneumothorax occurs when air enters the space between the lung and the chest wall. The trapped air presses against the lung, preventing it from expanding normally. Depending on how much air escapes, the lung may collapse partially or almost completely.
Although case reports have linked pneumothorax with weightlifting and intense physical effort, ordinary exercise is not considered a common direct cause. In many cases, strenuous activity may simply be happening when a vulnerable area of the lung ruptures. Understanding that distinction can prevent unnecessary fear while helping people recognize a genuine emergency.
This article is for general educational purposes and is not a substitute for medical diagnosis or individualized advice.
Can Strenuous Exercise Really Cause a Pneumothorax?
The most accurate answer is: it may be associated with one, but the relationship is not straightforward.
A pneumothorax that occurs without an injury is known as a spontaneous pneumothorax. A primary spontaneous pneumothorax develops in someone without a previously diagnosed lung disease, while a secondary spontaneous pneumothorax occurs in a person with an underlying lung condition.
Primary spontaneous pneumothorax is often connected to the rupture of a small air-filled area near the surface of the lung, known as a bleb or bulla. These abnormalities may exist without causing symptoms, so a person may not know that they have one.
Heavy lifting and other high-intensity exercises can produce large and rapid changes in pressure inside the chest, especially when someone holds their breath and strains. Researchers have proposed that these pressure changes could contribute to the rupture of a vulnerable bleb. However, this remains a possible mechanism rather than proof that strenuous exercise causes most spontaneous pneumothoraces.
In fact, an older study of 219 patients found that more than 87% were inactive when symptoms began, while none were performing heavy exertion. The researchers concluded that spontaneous pneumothorax appeared largely unrelated to muscular effort. This finding helps put gym-related cases in perspective: they can happen, but they are unusual. Read the study abstract on PubMed.
A separate situation is traumatic pneumothorax. A forceful blow to the chest, a fractured rib, or a sports collision can damage the lung directly. Dropping a barbell on the chest or allowing a heavily loaded bar to strike the rib cage could therefore cause an injury-related pneumothorax rather than a purely spontaneous one.
Why Might Pneumothorax Appear During a Workout?
Several elements may come together during demanding exercise:
Heavy straining can create dramatic changes in pressure inside the chest.
Breath-holding during a difficult lift may increase intrathoracic pressure.
Repetitive maximal efforts may place additional stress on already vulnerable lung tissue.
Contact sports can cause blunt chest trauma.
A person with an undiagnosed bleb, bulla, or lung disorder may already be predisposed to air leakage.
This does not mean that running, push-ups, squats, or strength training routinely make healthy lungs collapse. Millions of people perform these activities safely. The concern is greater when intense exertion is combined with an existing vulnerability, poor breathing technique, a previous pneumothorax, or chest trauma.
People should also understand that normal post-workout breathlessness is different from suddenly being unable to breathe comfortably. Breathlessness from exertion usually improves as you rest. Pneumothorax symptoms may persist, feel distinctly one-sided, or become progressively worse.
Who Is More at Risk?
A pneumothorax can happen to anyone, but certain factors increase the likelihood.
Primary spontaneous pneumothorax is classically more common in tall, thin adolescents and young adults, particularly males. Smoking is another important risk factor. Cannabis smoking and vaping may also expose the lungs to irritation or injury, although the exact level of risk associated with different products continues to be studied.
Secondary spontaneous pneumothorax may occur in people with conditions such as:
Chronic obstructive pulmonary disease
Cystic fibrosis
Asthma
Interstitial lung disease
Tuberculosis or certain other lung infections
Lung cancer
Lymphangioleiomyomatosis
Some inherited connective-tissue or cystic lung disorders
A previous pneumothorax also matters because recurrence is possible. Family history may be relevant in some cases, particularly when several relatives have experienced spontaneous lung collapse.
Women who develop repeated pneumothorax around the time of menstruation should tell their physician, since a rare condition called catamenial pneumothorax may need specialized investigation.
None of these risk factors guarantees that a pneumothorax will occur. Conversely, the absence of a known lung condition does not completely rule it out.
Warning Signs During or After Exercise
The typical symptoms of pneumothorax begin suddenly. According to the American Lung Association, common signs include chest pain that worsens with inhalation, shortness of breath, rapid breathing, a fast heartbeat, cough, fatigue, and bluish discoloration of the lips, skin, or nails. The organization advises obtaining immediate medical attention when these symptoms occur. See the American Lung Association’s symptom guide.
Watch for:
Sudden, sharp pain on one side of the chest
Pain that becomes worse when taking a deep breath
Unexpected shortness of breath that does not settle with rest
A feeling that one side of the chest is not expanding properly
Increasing anxiety or a sense that something is seriously wrong
Symptoms can initially be mild. A small pneumothorax may cause only an uncomfortable ache and slight breathlessness, which can easily be mistaken for a strained chest or back muscle.
Severe or rapidly worsening breathlessness, fainting, confusion, blue lips, low blood pressure, or extreme distress may indicate a life-threatening tension pneumothorax. This happens when pressure continues to build inside the chest and begins interfering with the heart and the other lung. It requires immediate emergency treatment.
A Documented Weightlifting Case
A published medical report described a 27-year-old weightlifter who developed mild chest pain and shortness of breath after “bouncing” a 250-pound barbell off his chest. Imaging revealed a pneumothorax. The case is notable because the initial symptoms were not dramatic, yet the condition had the potential to become much more serious. View the case report on PubMed.
Another report described three consecutive cases of spontaneous pneumothorax associated with weightlifting. The authors proposed that improper breathing techniques might have contributed to the events, although a small case series cannot establish cause and effect. Read the abstract through Europe PMC.
These reports demonstrate that pneumothorax can appear in connection with lifting, but they do not prove that weight training is a frequent cause. They also show why persistent chest symptoms after a strenuous session should not automatically be labeled ordinary muscle soreness.
What to Do If Symptoms Begin at the Gym
If sudden chest pain or unexplained breathing difficulty develops during exercise, stop immediately. Do not attempt another set to “test” whether the pain goes away.
Sit in a comfortable position and avoid unnecessary exertion. Tell someone nearby what is happening so you are not left alone. Seek urgent medical evaluation, particularly if the pain is one-sided, worsens with breathing, or is accompanied by shortness of breath.
Call emergency services immediately if breathing is difficult, symptoms are worsening, the person becomes faint or confused, or the lips appear blue or gray. A severely breathless person should not drive themselves to the hospital.
Do not:
Continue exercising or try to walk off the pain
Perform forced deep-breathing drills
Hold your breath to check lung capacity
Wrap or tightly compress the chest
Assume mild symptoms are harmless because you can still speak
Wait until the next day if breathing remains abnormal
Pneumothorax cannot be reliably diagnosed from symptoms alone. Heart problems, blood clots in the lungs, asthma, pneumomediastinum, rib injuries, and muscle strains can produce overlapping symptoms. Some of these are also emergencies.
How Pneumothorax Is Diagnosed and Treated
A clinician will review the symptoms, examine the chest, and listen for reduced breath sounds. Diagnosis is generally confirmed with a chest X-ray. Ultrasound or a CT scan may be used when the diagnosis is uncertain or more detail is needed. Mayo Clinic explains the diagnostic and treatment process here.
Treatment depends on the size of the pneumothorax, the severity of symptoms, underlying lung health, and whether air is continuing to leak.
A small and stable pneumothorax may be monitored while the body gradually absorbs the trapped air. Follow-up imaging is important because feeling better does not necessarily prove that the lung has fully re-expanded.
A larger or symptomatic pneumothorax may require needle aspiration or a chest tube to remove air from the pleural space. Persistent air leakage or repeated episodes may lead to surgery. Surgeons can remove leaking blebs and perform a procedure called pleurodesis, which helps the lung adhere to the chest wall and reduces the likelihood of another collapse.
When Can You Exercise Again?
There is no universal number of days that is safe for every patient. The answer depends on whether the lung has fully re-expanded, what treatment was required, whether surgery was performed, and whether an underlying disorder is present.
Current clinical guidance notes that strict bed rest is generally unnecessary for a stable primary spontaneous pneumothorax. Gentle activity may be permitted as symptoms improve. The European Society of Thoracic Surgeons notes that walking and climbing stairs may form part of recovery for some patients. See its patient information on pneumothorax.
However, intense exercise and contact sports should be postponed until the pneumothorax has completely resolved. A 2023 clinical guideline states that normal activities may resume once symptoms have disappeared, while extreme exertion and contact sports should wait for complete resolution. It also acknowledges that evidence connecting physical exertion with recurrence is limited. Read the clinical guideline.
For someone returning to weight training, a cautious progression may include walking first, followed by light aerobic work and then low-resistance exercises. Heavy lifting, maximal attempts, and breath-holding should return only after medical clearance. The treating clinician’s advice takes priority over a generic schedule.
Air travel, high-altitude activities, skydiving, and scuba diving create separate pressure-related concerns. Anyone recovering from a pneumothorax should discuss these activities with a respiratory specialist. Scuba diving may remain contraindicated even after treatment because a recurrence underwater could be fatal.
Can Exercise-Related Pneumothorax Be Prevented?
Not every spontaneous pneumothorax is preventable, especially when an unknown bleb ruptures without warning. Still, several habits may reduce avoidable risks:
Do not smoke, and consider stopping vaping.
Learn appropriate lifting and breathing techniques from a qualified trainer.
Avoid loading more weight than you can control safely.
Never bounce a barbell off your chest.
Use safety arms, spotters, and properly adjusted equipment.
Do not train through unexplained chest pain or abnormal breathlessness.
Allow time for recovery after respiratory illness or chest injury.
Follow all restrictions after a previous pneumothorax.
Tell a physician about recurrent chest symptoms or a family history of collapsed lung.
Breathing correctly and increasing exercise intensity gradually are sensible safety practices, but they cannot guarantee that pneumothorax will never occur. The most important protective skill is recognizing symptoms and responding promptly.
Frequently Asked Questions
Can running cause a collapsed lung?
Running is not considered a common cause of pneumothorax. A spontaneous pneumothorax can occur while someone is running, but it may reflect an underlying vulnerability rather than damage caused by running itself.
Can push-ups or bench presses cause pneumothorax?
Cases have occurred during weight training, including bench pressing, but they are rare. Sudden chest pain and unusual shortness of breath during any exercise deserve medical assessment, especially if they persist after stopping.
Does a pneumothorax always cause severe symptoms?
No. Small pneumothoraces may produce mild pain or limited breathlessness. The intensity of pain does not reliably indicate the size or danger of the air leak.
Is it safe to exercise after the pain disappears?
Not necessarily. Symptoms may improve before the lung has completely re-expanded. Return to strenuous training should be based on medical review and, when recommended, follow-up imaging.
Pneumothorax from strenuous exercise is uncommon, but it is serious enough that sudden one-sided chest pain and persistent shortness of breath should never be treated as routine workout discomfort. Have you ever experienced an unusual chest symptom during exercise, or did any of these warning signs surprise you? Share your thoughts or experience in the comments—your story may help another reader recognize when it is time to stop exercising and seek help.
Hi, I’m the creator and editor behind ZestyHabit. I research everyday safety, first aid, and practical wellness topics using official guidance and reliable public sources, then turn that information into clear, realistic steps for daily life.
My goal is to help readers make safer, better-informed choices at home and beyond.
