An intercostal muscle strain can cause pain, tenderness, tightness, and discomfort when moving or breathing. These muscles are located between the ribs and help stabilize the chest wall during breathing and upper-body movement. Recognizing the common symptoms can help someone understand when an injury may require medical attention.
An intercostal muscle strain can develop after sudden twisting, heavy lifting, intense physical activity, coughing, falls, or an accident. The severity of symptoms can vary depending on how much the muscle has been stretched or damaged. Because chest and rib pain can have several possible causes, a healthcare professional should evaluate concerning or persistent symptoms.
1. Pain Around the Ribs
Pain around the ribs or chest wall is one of the most common symptoms of an intercostal muscle strain.
The discomfort may feel sharp, aching, or tight. It may become more noticeable when twisting, bending, reaching, or moving the upper body. Some people may experience pain in a specific area between two or more ribs.
The location and intensity of the pain can vary based on the affected muscle and severity of the strain.
2. Pain When Taking a Deep Breath
Intercostal muscles assist with the movement of the rib cage during breathing. When these muscles are injured, expanding the chest can increase discomfort.
A person may notice more pain when taking a deep breath, coughing, sneezing, or laughing. Some people may instinctively take shallower breaths to avoid worsening the discomfort.
However, significant or unexplained chest pain or difficulty breathing should receive prompt medical attention because other conditions can produce similar symptoms.
3. Tenderness in the Affected Area
Tenderness is another common symptom.
The area around the injured muscle may feel sensitive when touched or pressed. This tenderness can sometimes help distinguish a muscle-related injury from other possible sources of discomfort, although only a medical professional can properly evaluate the cause.
Avoiding activities that aggravate the area may help prevent additional strain while the injury heals.

4. Muscle Tightness or Spasms
An injured intercostal muscle may feel tight or stiff. Some people may also experience muscle spasms around the ribs.
These symptoms can make normal movements uncomfortable and may interfere with activities such as reaching, stretching, lifting, or turning the torso.
Rest and appropriate treatment may help, depending on the severity of the injury and a healthcare professional’s assessment.
5. Limited Upper-Body Movement
An intercostal muscle strain can make certain movements difficult or uncomfortable.
Twisting the torso, bending sideways, lifting objects, or reaching overhead may increase pain. Someone with a more significant strain may temporarily reduce physical activity because movement aggravates the injured area.
Gradually returning to normal activity should generally depend on recovery and medical guidance.
When Medical Attention May Be Necessary
Not every case of rib or chest pain is caused by a muscle strain. Chest discomfort can sometimes be associated with conditions that require urgent medical care.
Seek emergency care for severe or unexplained chest pain, significant difficulty breathing, fainting, or symptoms that suddenly worsen. A healthcare professional can determine whether the symptoms are consistent with a muscle injury or require further evaluation.
Intercostal Strains After Accidents
An intercostal muscle strain can sometimes occur during a motor vehicle accident, particularly when the body is suddenly forced forward or sideways.
If the injury resulted from a collision caused by another person’s negligence, medical records can become important when documenting the injury. Treatment notes, diagnostic records, medical bills, and other documentation may help establish the nature and financial impact of the injury.
For example, California Code of Civil Procedure § 335.1 generally provides a two-year limitations period for certain personal injury actions, although exceptions can apply depending on the circumstances.
Supporting Recovery With Proper Care
Recovery from a muscle strain depends on the severity of the injury and the individual’s overall circumstances. Medical professionals may recommend rest, appropriate pain management, physical therapy, or other treatments.
Following medical instructions and documenting symptoms can help track recovery. Avoiding activities that worsen the injury may also reduce the risk of aggravating the affected muscles.

Key Takeaways
- An intercostal muscle strain affects muscles located between the ribs.
- Common symptoms include rib pain, tenderness, tightness, and discomfort with movement.
- Deep breathing, coughing, sneezing, and twisting may increase pain.
- Chest pain should not automatically be assumed to be a muscle strain.
- Medical records can be important when an intercostal injury results from an accident.
- California Code of Civil Procedure § 335.1 provides a general limitations period for certain personal injury claims.
- Proper medical evaluation can help determine the cause and appropriate treatment of chest or rib pain.
