After swimming, I feel a slight stabbing pain in my heart. What could be causing this, and what should I do?

May 14, 2025 Source: Cainiu Health
Dr. Tian Hongbo
Introduction
In general, chest pain after swimming may be related to pathological factors such as changes in breathing patterns, cold stimulation, pleurisy, viral myocarditis, and acute pericarditis. It is recommended to seek timely medical attention at a hospital to determine the exact cause and receive appropriate treatment. Additionally, it is advisable to perform adequate warm-up exercises before swimming, select suitable exercise intensity and duration based on individual physical condition, and avoid excessive fatigue.

In general, chest pain after swimming may be related to pathological factors such as changes in breathing patterns, cold stimulation, pleurisy, viral myocarditis, and acute pericarditis. It is recommended to seek timely medical consultation to identify the underlying cause and receive targeted treatment. Details are as follows:

1. Changes in Breathing Patterns

Breathing frequency and depth during swimming differ from normal conditions, which may lead to respiratory muscle fatigue or intercostal muscle spasms, causing sensations similar to cardiac stabbing pain. Normally, one can try slow deep breathing, relax the body, and gently massage the chest muscles to alleviate discomfort.

2. Cold Stimulation

Failure to keep warm properly after swimming may easily slow blood flow to the heart area, causing local tissue ischemia and hypoxia, which results in cardiac stabbing pain. This is a normal physiological phenomenon that can gradually improve with prompt warming measures and does not require specific treatment.

3. Pleurisy

Swimming may worsen pre-existing symptoms of pleurisy. Inflammation can irritate the pleura, causing chest pain often accompanied by stabbing or pulling pain, especially exacerbated during deep breathing or coughing. Patients may follow medical advice to take medications such as Cefaclor Dispersible Tablets, Rifampin Capsules, and Penicillin V Potassium Tablets for treatment.

4. Viral Myocarditis

Viral myocarditis is primarily caused by inflammation of the myocardial tissue due to bacterial or fungal infections. Common symptoms include precordial stabbing pain, chest tightness, and palpitations. Under a physician's guidance, medications such as Digoxin Tablets and Coenzyme Q10 Tablets may be used for treatment.

5. Acute Pericarditis

Acute pericarditis is an acute inflammatory condition affecting the visceral and parietal layers of the pericardium caused by bacterial infection. Main symptoms include precordial pain, epigastric stabbing pain, and dyspnea. Under medical guidance, oral antibiotic medications such as Cefixime Capsules and Roxithromycin Capsules may be used for treatment.

Before swimming, it is important to perform warm-up exercises, select appropriate exercise intensity and duration according to individual physical condition, and avoid excessive fatigue.