
Torn muscles are categorised by the severity of the injury: mild, moderate, and severe. Mild tears are simple strains affecting 5% of a muscle's fibres, while moderate tears affect up to 25-30% of fibres and are accompanied by swelling, decreased range of motion, and pain. Severe tears are complete muscle ruptures that may require surgery to repair. Symptoms of a torn muscle include pain, soreness, spasms, swelling, bruising, and stiffness. Depending on the severity of the strain, you may find it difficult to move the affected area.
| Characteristics | Values |
|---|---|
| Severity | Mild, moderate, severe |
| Symptoms | Pain, soreness, spasms, swelling, bruising, discolouration, stiffness, decreased range of motion |
| Treatment | Surgery, ultrasound, MRI, home recovery |
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What You'll Learn

Muscle strain grades
Muscle strains are categorised by severity: mild, moderate, and severe. Mild muscle strains are the most common type of strain, where the muscle has been stretched and pulled enough to cause minor damage, but it isn't torn through. You will experience pain and soreness, as well as spasms and swelling in the affected area.
Moderate muscle strains have torn through some or even most of the muscle. This will affect your muscle strength and range of motion. You will experience swelling, decreased range of motion, and pain.
Severe muscle strains have torn all the way through the muscle. A complete muscle tear (muscle rupture) might need surgery to repair it. You will experience extensive swelling, and it will be difficult to move the affected area.
If you think you have a torn muscle, you should seek medical attention. A healthcare provider will ask you about when the pain started and what you were doing at the time. They will then examine the spot, which may have visible bruising and swelling. They will gently feel it for tenderness and test the muscle for strength and range of motion. Depending on the severity of the strain, they may recommend treatment options such as rest, ice, compression, and elevation.
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Muscle stiffness
If you have torn a muscle, you will know immediately. Symptoms include pain and soreness, as well as spasms and swelling in the affected area. Depending on the severity of the strain, you may find it difficult to move the area, if at all.
If you have pulled a muscle, you will probably know how it happened. A healthcare provider will ask you about when the pain started and what you were doing at the time. They will then examine the spot, which may have visible bruising and swelling if it has been at least 24 hours since the injury. They will gently feel it for tenderness and test the muscle for strength and range of motion.
There are three grades of muscle strain: Grade I is a mild muscle strain, where the muscle has been stretched and pulled enough to cause minor damage, but it isn't torn through. This is the most common type. Grade II is a moderate muscle strain, where some or even most of the muscle has been torn through. This will affect muscle strength and range of motion and can take time to heal. Grade III is a severe muscle strain, where the muscle has torn all the way through. A complete muscle tear (muscle rupture) might need surgery to repair it.
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Muscle imbalances
When muscles are imbalanced, they can pull on joints and bones in abnormal ways, leading to pain and discomfort. This can also affect the way the body moves, causing issues with gait and balance. In some cases, muscle imbalances can even lead to joint injuries or chronic pain conditions.
It is important to address muscle imbalances as soon as they are identified. This can be done through targeted stretching and strengthening exercises, as well as myofascial release techniques such as foam rolling. By restoring balance to the body, these interventions can help to reduce pain and improve overall function.
In some cases, muscle imbalances may be caused by underlying conditions such as scoliosis or cerebral palsy. If you suspect that you have a muscle imbalance, it is important to consult with a healthcare professional to rule out any underlying causes and develop an appropriate treatment plan.
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Previous injuries
If you have torn a muscle before, you are more likely to tear it again. When you go to a healthcare provider, they will ask you about when the pain started and what you were doing at the time. They will then examine the spot, which may have visible bruising and swelling if it has been at least 24 hours since the injury. They will gently feel it for tenderness and test the muscle for strength and range of motion.
Muscle tears are categorised by the severity of the injury: mild, which is a simple strain affecting 5% of a muscle's fibres; moderate, which is up to 25-30% of fibres torn and is accompanied by swelling, decreased range of motion and pain; and severe, which is an actual tear in a muscle that is accompanied by extensive swelling. When you tear a muscle, even when it is mild, you will know immediately. Expect pain and soreness, as well as spasms and swelling in the affected area. Depending on the severity of the strain, you may find it difficult to move the area, if at all.
If you have a mild muscle strain, you have stretched and pulled your muscle enough to cause minor damage, but it isn't torn through. This is the most common type. A moderate muscle strain has torn through some or even most of the muscle. This will affect your muscle strength and range of motion. It can take time to heal. If you have a severe muscle strain, your muscle has torn all the way through. A complete muscle tear (muscle rupture) might need surgery to repair it. Most people can recover from a pulled muscle at home.
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Treatment options
If you have a moderate muscle strain, some or even most of the muscle will have torn through. This will affect your muscle strength and range of motion. You may need to seek medical attention, but this can often be treated at home.
If you have a severe muscle strain, your muscle has torn all the way through. A complete muscle tear (muscle rupture) might need surgery to repair it. You will likely need to seek immediate medical attention.
Your doctor will ask you about what caused the injury and your medical history. They'll also give you a physical exam. They'll check whether your muscle is partially or completely torn. A complete tear can involve a much longer healing process and a more complicated recovery. For a more serious muscle strain, your doctor may do an ultrasound to check for tears or fluid, or an MRI to check for blood clots or internal bleeding.
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Frequently asked questions
You will likely know immediately if you've torn a muscle. You can expect pain, soreness, spasms and swelling in the affected area. Depending on the severity of the strain, you may find it difficult to move the area, if at all.
Grade I is a mild muscle strain, where you've stretched and pulled your muscle enough to cause minor damage, but it isn't torn through. Grade II is a moderate muscle strain, where the muscle has torn through some or even most of the muscle. Grade III is a severe muscle strain, where the muscle has torn all the way through.
You should seek medical attention. Your doctor will ask you about what caused the injury and your medical history. They'll also give you a physical exam to check whether your muscle is partially or completely torn.
Symptoms include swelling, bruising and discolouration, accompanied by a "knotted up" feeling or stiffness. If the tear is from overuse, the symptoms may take weeks to get to the point where you finally seek medical attention.
Most people can recover from a pulled muscle at home. However, a complete muscle tear (muscle rupture) might need surgery to repair it.











































