
Intercostal muscle strain is a common cause of chest pain and can be quite painful. It occurs when the intercostal muscles between the ribs are stretched, pulled, or torn. This can happen due to sudden twisting movements, overexertion, or repetitive motions. Symptoms include pain and tenderness in the chest and rib area, difficulty breathing, and muscle spasms. While intercostal muscle strain can be frightening, especially if it leads to breathing difficulties, it is usually a minor condition that can improve with rest and proper care. However, it is important to seek medical attention if the pain is severe, lasts for an extended period, or is accompanied by other concerning symptoms. While intercostal muscle strain can cause chest pain and discomfort, it is unclear if it directly leads to heart palpitations.
| Characteristics | Values |
|---|---|
| Cause | Trauma, overexertion, or injury |
| Symptoms | Pain, tightness, tenderness, swelling, bruising, muscle spasms, difficulty breathing, fatigue, dizziness, light-headedness, irregular heart rate and rhythm, and changes in blood pressure |
| Diagnosis | Physical examination, neurological examination, imaging tests (X-ray, ultrasound, MRI, EKG, echocardiogram), patient history |
| Treatment | Rest, ice packs, heat therapy, breathing exercises, stretching, strengthening exercises, medication (lidocaine and corticosteroids), surgery (in severe cases) |
| Prevention | Warm-up, proper form and technique, staying hydrated, avoiding overdoing activities |
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What You'll Learn

Intercostal muscle strain symptoms
Intercostal muscle strains are tears in the muscles between the ribs that help build the chest wall and assist in breathing. They are caused by twisting, straining, or stretching too far, and can be the result of overexertion, injury, or a sudden increase in physical activity. The symptoms of an intercostal muscle strain include:
- Pain: This can be a sharp pain at the time of injury or come on gradually. The pain will worsen with movement, especially twisting, stretching, coughing, sneezing, or breathing deeply.
- Tenderness: The area between the ribs will be sore to the touch.
- Difficulty breathing: The pain may cause the patient to take small, shallow sips of air, which can lead to infection and pneumonia if not careful.
- Swelling and bruising: These symptoms may occur when the strain is severe.
The severity of an intercostal muscle strain can be graded into three categories. Grade 1 is a mild strain with less than 5% of muscle fibres damaged and minimal loss of motion. Grade 2 involves more extensive damage to muscle fibres but without a complete rupture, and the patient will experience a significant loss of motion. Grade 3 is a complete rupture of the muscle.
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Intercostal muscle strain causes
The intercostal muscles are the most commonly affected muscle groups in musculoskeletal causes of chest pain. From 21 to 49 percent of all musculoskeletal chest pain comes from the intercostal muscles. Intercostal muscle strains can result from a sudden increase in activity or physical demands of the chest and upper body. A strained chest muscle usually causes a type of chest pain that gets worse with movement, deep breathing, or coughing.
Intercostal muscle strains are graded based on severity, with grade one being the mildest and grade three being the most severe. A grade one muscle strain is a mild injury involving a small number of muscle fibers. Daily activities are typically not significantly affected in this grade of muscle strain. A grade two muscle strain is a moderate injury that involves a more significant number of muscle fibers. This grade of muscle strain may affect daily activities and require more extensive treatment.
Intercostal muscle strain may be mistaken for upper back pain, but injury is rare in the upper back due to its relative immobility. Upper back pain is often due to long-term problems with posture, such as slouching, or a severe injury that has weakened the upper spine, such as a car accident. Intercostal strain, on the other hand, is typically the result of trauma, overexertion, or activity, and its area of pain can be located by the patient.
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Intercostal muscle strain diagnosis
The doctor will then perform a physical examination, which includes palpation to locate the tender area and assess your range of motion and pain level during movement. They may ask you to perform active movements of your torso or trunk to understand how the injury affects your function and movement.
Imaging tests, such as X-rays, ultrasounds, or MRI scans, may be ordered to rule out other injuries, such as a fractured rib or internal organ damage. These imaging tests are not typically necessary for diagnosing an intercostal muscle strain but can be helpful in certain cases.
Before diagnosing an intercostal muscle strain, healthcare professionals may also perform an electrocardiogram (EKG) and echocardiogram to examine your heart structure and function, especially if cardiac issues are suspected. A neurological examination may also be conducted to screen for neurological issues like nerve root compression, which can cause chest pain.
Intercostal muscle strains are graded according to their severity:
- Grade 1: Mild strain with less than 5% of muscle fibers damaged, resulting in minimal loss of motion. Healing typically takes two to three weeks.
- Grade 2: More extensive damage to muscle fibers, but the muscle is not completely ruptured. There is a significant loss of motion, and healing may take up to two to three months.
- Grade 3: Complete rupture of the muscle, potentially requiring surgery and an extended period of rehabilitation.
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Intercostal muscle strain treatment
Intercostal muscle strain refers to an injury affecting the muscles between two or more ribs. It may cause sharp, direct pain, stiffness, and difficulty moving. This type of injury often results from overexertion or injury during exercise, such as twisting while lifting weights, prolonged overhead reaching, or a direct blow to the ribs. A sudden increase in physical activity can also lead to an intercostal muscle strain.
Most intercostal muscle strains can be treated at home. Recovery time depends on the severity of the injury. Grade 1 strains, which involve less than 5% of muscle fibres being damaged, typically heal in 2 to 4 weeks. Grade 2 strains, which involve more extensive damage to muscle fibres, can take up to 2 months to heal. Grade 3 strains, which involve a complete rupture of the muscle, often take 6 to 9 months or longer to recover.
Home treatment options for mild to moderate intercostal muscle strains include:
- Rest: Limit all physical activity for a few days to allow time for the muscle strain to recover.
- Ice therapy: Apply an ice pack or cold pack during the first 48 hours to reduce inflammation and pain.
- Heat therapy: After the initial 48 hours, switch to heat therapy to increase circulation, promote healing, and reduce muscle tension. Options include warm baths, heating pads, or adhesive heat wraps.
- Pain relievers: Over-the-counter pain relievers, such as non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, can help reduce inflammation and manage pain.
For more severe strains, additional treatment options may include:
- Physical therapy: Once the inflammation has reduced, physical therapy can help with pain relief, stretching, strength-building exercises, improving posture, and breathing exercises.
- Muscle relaxants: In some cases, muscle relaxant medications may be prescribed to help with muscle tension and pain.
- Injectable medications: For stubborn strains, a doctor may inject the area with corticosteroids and lidocaine to reduce pain and swelling.
It is important to seek medical advice if you are unsure about the severity of your injury, if your symptoms persist or worsen, or if you experience difficulty breathing, coughing up blood, or other concerning symptoms.
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Intercostal muscle strain prevention
Intercostal muscle strains can be prevented by strengthening the muscles and avoiding overexertion.
The intercostal muscles are the muscles between the ribs that help build the chest wall and assist in breathing. Intercostal muscle strains occur when the muscles are twisted, strained, stretched, or torn. This can happen due to a sudden increase in physical activity, overexertion, or trauma.
To prevent intercostal muscle strain, it is important to strengthen the intercostal muscles and maintain good posture. This can be done through exercises that target the intercostal muscles, such as:
- Forward stretch: Sit on the floor with one leg straight and the other bent, with the sole of the foot touching the knee. Lean forward over the bent leg, rotating the torso slightly, and touch the floor with both palms if possible. Hold the stretch for 15 to 30 seconds, then repeat on the opposite side.
- Breathing exercises: Sit or stand with a straight back and take a full breath from the bottom of the lungs. Focus on breathing from the diaphragm by slowly expanding the abdominal muscles while inhaling, then pushing the air out of the lungs using these same muscles.
In addition to strengthening exercises, it is important to warm up before engaging in sports or physical activity. A gradual warm-up can help increase blood flow to the muscles and prepare them for more intense activity.
It is also important to avoid overexertion and activities that may be too strenuous for your current fitness level. If you are new to exercise or increasing the intensity of your workouts, it is important to gradually progress and not overexert yourself. Maintaining good posture can also help prevent intercostal muscle strain by ensuring that the muscles are properly aligned and supported.
By incorporating strengthening exercises, warm-ups, and gradual progressions into your routine, you can help prevent intercostal muscle strain and promote overall muscle health.
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Frequently asked questions
Intercostal muscle strains occur when the intercostal muscles between the ribs are twisted, stretched, or pulled. They are the most common cause of musculoskeletal chest pain and can result from a sudden increase in physical activity, trauma, or repetitive forceful movements.
Symptoms include pain and tightness in the chest and ribs, which can increase with movement, coughing, or breathing. Other symptoms include swelling, bruising, and muscle spasms. Intercostal muscle strains can also cause difficulty breathing due to pain, which may lead to infection or pneumonia if left untreated.
A doctor will typically perform a physical examination, assessing the patient's range of motion and pain levels. They may also take a medical history, asking about any recent injuries, sports involvement, and the location and severity of the pain. Imaging tests such as X-rays, ultrasounds, or MRIs may be ordered to rule out other possible causes, such as rib fractures or internal organ injuries.
While intercostal muscle strains can cause chest pain, they are not typically associated with heart palpitations. Heart palpitations are more commonly linked to cardiac issues, which often present with additional symptoms such as shortness of breath, fatigue, dizziness, and changes in blood pressure.











































