Pneumothorax Symptoms: Early Signs, Causes & Diagnosis

Quick Glance: Common Pneumothorax Symptoms

Pneumothorax symptoms can range from mild to severe. A small pneumothorax may cause little discomfort. However, a larger or rapidly developing pneumothorax can lead to significant breathing difficulty. The most common pneumothorax symptoms include:

Sudden, sharp chest pain, often on one side
Shortness of breath or difficulty breathing
Rapid breathing
Fast heartbeat (tachycardia)
A dry cough
Pain that may spread to the shoulder, neck or upper abdomen
Chest tightness or discomfort
Bluish lips or skin (cyanosis), particularly in more severe cases

Symptoms of Pneumothorax That Should Not Be Ignored

Some pneumothorax symptoms should not be ignored because they increase the chance of complications when left untreated. The table below mentions those symptoms and what they may indicate:

Symptom	What It May Indicate
Sudden, sharp chest pain	Possible air leakage into the pleural space that can affect normal lung expansion
New or worsening shortness of breath	May indicate increasing lung collapse or reduced ability of the lung to exchange oxygen.
Rapid breathing	The body may be responding to reduced oxygen levels or breathing difficulty.
Fast heartbeat	May be a response to breathing difficulty, reduced oxygen or increasing physical stress.
Blue or grey lips or skin	Possible low blood oxygen levels (cyanosis)
Severe chest tightness with breathing difficulty	A larger pneumothorax or increasing pressure within the chest.
Dizziness, weakness or fainting	May occur when oxygen delivery or blood circulation is significantly affected.
Sudden worsening after chest trauma	May indicate a traumatic pneumothorax or another chest injury requiring urgent assessment.

Why Do Pneumothorax Symptoms Occur?

Pneumothorax symptoms develop when air collects in the pleural space, the narrow area between the lung and the inside of the chest wall. As air builds up, it can put pressure on the affected lung and limit its ability to expand fully while breathing.

Chest pain often occurs because the tissues that surround the lung become irritated or stretched. The pain is usually sudden, and sharp and it may become more noticeable when taking a deep breath or coughing. Shortness of breath develops when a part of the lung cannot expand properly. The severity depends partly on how much of the lung has collapsed and whether the person already has reduced lung function due to an underlying condition.

The body may respond to reduced breathing efficiency by increasing the breathing rate and heart rate. In a more severe pneumothorax, oxygen levels may fall, potentially causing bluish skin or lips, dizziness or weakness.

Symptoms of Pneumothorax That Require Immediate Medical Attention

Take emergency medical care if any of the following pneumothorax symptoms occur, particularly if they develop suddenly:

Severe or rapidly worsening shortness of breath
Blue or grey lips, face or fingertips
Fainting or loss of consciousness
Symptoms of shock, such as extreme weakness, pale or clammy skin
Sudden breathing difficulty following a chest injury

Symptoms of Pneumothorax Based on Type

Some symptoms of pneumothorax based on type are:

Type	Symptoms
Primary spontaneous pneumothorax	Sudden one-sided chest pain, shortness of breath, rapid breathing and fast heartbeat; symptoms may be mild if the pneumothorax is small.
Secondary spontaneous pneumothorax	Chest pain and breathlessness, which may be more pronounced because an underlying lung condition can already limit breathing capacity.
Traumatic pneumothorax	Sudden chest pain, shortness of breath and rapid breathing after blunt or penetrating chest trauma.
Latrogenic pneumothorax	Chest pain and breathing difficulty following certain medical procedures involving the chest or lungs.
Tension pneumothorax	Severe or rapidly worsening breathing difficulty, chest pain, rapid heartbeat, low blood pressure, dizziness, cyanosis, collapse or loss of consciousness.

Symptoms of Pneumothorax in Women

Most pneumothorax symptoms are similar in men and women. However, catamenial pneumothorax is a rare type that only women experience. It is associated with menstruation and is linked to thoracic endometriosis. It may cause repeated episodes of chest pain or breathlessness around the menstrual period, often affecting the right side of the chest.

Symptoms of Pneumothorax in Children

Pneumothorax is less common in children than in adults. Its symptoms can vary depending on the child's age and the size of the pneumothorax.

Possible symptoms of pneumothorax include:

Sudden chest pain
Difficulty breathing or breathlessness
Rapid breathing
Fast heartbeat
Cough
Bluish lips or skin in severe cases
Irritability, weakness or unusual tiredness

In babies and very young children, breathing difficulty may be noticed as rapid breathing, grunting, chest retractions or difficulty feeding. Any child with sudden breathing difficulty needs prompt medical assessment.

Can You Have Pneumothorax Without Symptoms?

Yes. A small pneumothorax may cause only mild symptoms or, in some cases, no noticeable symptoms at all. It may occasionally be discovered incidentally during a chest X-ray or CT scan performed for another reason.

Symptoms depend on how fast the pneumothorax develops. A small pneumothorax that is developing slowly may be less noticeable. On the other hand, a larger or rapidly developing pneumothorax is more likely to cause sudden and significant symptoms.

The absence of symptoms does not mean a pneumothorax is not present. Medical imaging may be needed if your doctor suspects the presence of a pneumothorax, particularly after chest trauma or certain medical procedures.

When Can Pneumothorax Symptoms Become Life-Threatening?

Certain complications of pneumothorax can become life-threatening and require immediate medical attention. The table below represents these complications:

Life-threatening Complications	What It May Indicate
Tension pneumothorax	This occurs when air continues to accumulate in the pleural space and creates increasing pressure inside the chest. The pressure can compress the lung and major blood vessels, causing severe breathing and circulation problems.
Severe respiratory distress	A large pneumothorax or one occurring in a person with an underlying lung condition can cause significant difficulty breathing and dangerously low oxygen levels.
Shock	A severe tension pneumothorax can reduce blood returning to the heart, potentially causing a dangerous drop in blood pressure and shock.
Cardiac arrest	If a tension pneumothorax is not treated promptly, severe impairment of breathing and circulation can progress to cardiac arrest. This requires immediate emergency intervention.

How are Pneumothorax Symptoms Diagnosed?

Doctors assess symptoms alongside a physical examination and imaging tests. Because chest pain and breathlessness can have many causes, medical evaluation is important for confirming the diagnosis. Some of the tests used to diagnose pneumothorax are given in the table below:

Diagnostic Test	Purpose
Chest X-ray	Commonly used to identify air in the pleural space and assess lung collapse.
Lung ultrasound	Can help detect pneumothorax, particularly in emergency or trauma settings when performed by an experienced clinician.
CT scan of the chest	Provides more detailed images and may be used when the diagnosis is uncertain or an underlying lung problem needs further assessment.
Physical examination	The doctor assesses breathing, oxygen levels and other clinical signs that may suggest pneumothorax.
Pulse oximetry	Measures blood oxygen saturation and helps assess the effect of the condition on oxygen levels.

FAQs

Q1. What are the early symptoms of pneumothorax?

Ans: The most common early symptoms of pneumothorax are sudden, sharp chest pain and shortness of breath. The pain is often felt on the affected side, although symptoms can vary depending on the size and cause of the pneumothorax.
Q2. Can a pneumothorax develop without symptoms?

Ans: Yes. A small pneumothorax may cause mild symptoms. It may sometimes be detected incidentally during imaging performed for another reason. However, the absence of symptoms does not rule out the condition.
Q3. Which pneumothorax symptoms should never be ignored?

Ans: Sudden chest pain, new or worsening shortness of breath, severe dizziness, fainting, and rapidly worsening breathing difficulty are some pneumothorax symptoms that require prompt medical attention. These symptoms may indicate a more serious pneumothorax or another urgent medical condition.
Q4. Are pneumothorax symptoms different in men and women?

Ans: The main pneumothorax symptoms are generally the same in men and women. However, certain less common forms, such as catamenial pneumothorax, can affect women, as it is associated with menstruation and may present as recurrent chest symptoms around the menstrual period.
Q5. How can I tell if my chest pain could be due to a pneumothorax?

Ans: Chest pain caused by pneumothorax is typically sudden, sharp and often felt on one side of the chest. It may occur with shortness of breath, rapid breathing or chest tightness. Because these symptoms can also occur with other serious conditions, prompt medical evaluation is important.
Q6. When should I see a doctor if I have pneumothorax symptoms?

Ans: You should seek prompt medical assessment for sudden chest pain or unexplained difficulty breathing, as these could be pneumothorax symptoms. If the condition worsens, contact your doctor as soon as possible.
Q7. Can pneumothorax symptoms vary in intensity?

Ans: Yes. Pneumothorax symptoms can range from mild or barely noticeable to severe. The intensity depends on factors such as the amount of air in the pleural space, how much the lung has collapsed, how quickly the condition develops, and whether underlying lung disease is present.
Q8. Which pneumothorax symptoms indicate a pneumothorax emergency?

Ans: Severe or rapidly worsening breathlessness, severe chest pain, cyanosis, fainting, very rapid heartbeat, low blood pressure or signs of shock can indicate a life-threatening complication such as tension pneumothorax. These symptoms require immediate emergency medical care.