Pulmonary embolism pain is most commonly felt in the chest, typically as a sharp, stabbing sensation that worsens when you breathe in deeply. But the pain doesn’t always stay in the chest. Depending on where the blood clot lodges in the lungs, you may also feel it in your upper abdomen, flank, shoulder, or back. Over 90% of people with a pulmonary embolism experience some combination of shortness of breath, rapid breathing, or chest pain.
Chest Pain: The Most Common Location
The hallmark of pulmonary embolism is pleuritic chest pain, a sudden, intense, sharp or burning sensation that hits when you inhale or exhale. It often gets worse when you cough, bend over, or lean forward. Many people describe it as feeling like a heart attack, and the two can genuinely be hard to tell apart in the moment.
More than half of pulmonary embolism patients report chest pain, though it varies by clot size and location. When a clot blocks a larger, more central artery in the lungs (a proximal embolism), 97% of patients have either shortness of breath, rapid breathing, or pleuritic pain. When the clot is smaller and lodged in a more peripheral branch, those classic symptoms show up in only about 77% of cases. Smaller clots can even be completely painless: routine imaging studies have found silent pulmonary embolisms in 40% to 50% of patients who already had blood clots in their legs but had no lung symptoms at all.
How It Differs From Heart Attack Pain
Heart attack pain is usually a dull pressure, squeezing, or heaviness in the center of the chest that may radiate to the left arm or jaw. It doesn’t typically change with breathing. Pulmonary embolism pain, by contrast, is sharp and directly linked to the act of inhaling. If the pain noticeably spikes every time you take a breath, that pattern points more toward a lung-related cause than a cardiac one. That said, the overlap is real enough that emergency physicians treat both possibilities seriously until imaging can confirm what’s going on.
Abdominal and Flank Pain
Some pulmonary embolisms cause pain in the upper abdomen rather than the chest, which can send both patients and doctors looking in the wrong direction. Right upper quadrant abdominal pain, the area just below your ribs on the right side, has been documented in multiple case reports. The likely explanation is that a clot in the lower portion of the lung irritates the diaphragm (the sheet of muscle separating your chest from your abdomen), causing pain that feels like it’s coming from your belly. Liver congestion from sudden strain on the right side of the heart may also play a role.
Flank pain, felt along the side of the torso between the ribs and the hip, is another recognized but less common presentation. Because flank pain is more commonly associated with kidney problems, a pulmonary embolism in this location can be initially misdiagnosed.
Shoulder, Back, and Neck Pain
In rarer cases, pulmonary embolism pain shows up as referred pain in the shoulder, upper back, or neck. Referred pain happens when irritation in one part of the body (in this case, the lining of the lungs or the diaphragm) sends signals along shared nerve pathways, so your brain perceives the pain as coming from somewhere else entirely. A clot in the left lower lobe of the lung, for instance, has been documented causing shoulder-to-back pain severe enough that the patient couldn’t lie down or sleep flat.
Neck-to-shoulder referred pain has also been reported. These atypical presentations are uncommon, but they matter because they delay diagnosis. When a physical exam of the shoulder or back looks completely normal but the pain is persistent and unexplained, especially alongside shortness of breath or a rapid heart rate, a pulmonary embolism may be the underlying cause.
When Pain Is Absent Entirely
Not every pulmonary embolism causes pain. Small clots that block peripheral branches of the pulmonary arteries sometimes produce no symptoms at all, or only subtle signs like a mildly elevated breathing rate, a faster-than-normal heart rate, or a low-grade fever. These “silent” embolisms generally carry a good short-term prognosis, with a three-month mortality rate below 1%. The danger is that even large clots can occasionally present with surprisingly mild symptoms, so the absence of dramatic chest pain doesn’t rule out a significant embolism.
What the Pain Pattern Tells You
The location and intensity of pulmonary embolism pain roughly correspond to where the clot is and how much lung tissue it affects. A large clot in a central pulmonary artery is more likely to cause severe breathlessness along with chest pain. A smaller clot near the surface of the lung is more likely to irritate the lung lining and produce that classic sharp, breath-dependent pleuritic pain. A clot near the base of the lung, close to the diaphragm, is the type most likely to refer pain to the abdomen, shoulder, or back.
The combination of symptoms matters more than any single one. Shortness of breath paired with sharp chest pain that worsens on inhalation is the most recognizable pattern. But unexplained shoulder pain with a fast heart rate, or sudden upper abdominal pain with difficulty breathing, can point to the same diagnosis. The key thread connecting all of these presentations is that the pain tends to appear suddenly rather than building gradually over days or weeks.