Why do I experience left side chest pain when coughing?

When you cough, the muscles and tissues in your chest work hard, and this strain can make the left side of your chest hurt. If you cough very forcefully or often, the muscles, ribs, or the cartilage that connects them (known as costochondral joints) can become irritated or even pulled. This is one common reason for experiencing chest pain when coughing.

Additionally, if you have a lung condition such as bronchiectasis or chronic obstructive pulmonary disease (COPD), these conditions can make the tissue around your lungs more sensitive. When you cough, the already irritated tissue may cause sharp or aching pain. Sometimes the lining around your lungs (the pleura) can also get inflamed, and a bout of coughing can reveal this pain by increasing pressure on that area.

Although chest pain with coughing is often due to these nonheart causes, it is important to seek medical guidance if the pain is severe, gets worse, or comes with other symptoms like trouble breathing. To help understand your symptoms better, you can start by taking a free symptom checker test to identify possible causes and determine whether you need urgent care.