Pec Tear

A pectoralis major tendon rupture, commonly called a pec tear, is an injury to one of the main chest muscles where it connects to the upper arm bone. This injury can cause sudden pain, weakness, and a noticeable change in the shape of the chest.

Although not very common, pec tears are becoming more frequent as weightlifting and gym training have grown in popularity. They are most often seen in young and active men between 20 and 40 years of age, particularly those involved in weight training or contact sports.

The pectoralis major, often known as the “pec,” is the large chest muscle you use when pushing, lifting, or bringing your arm across your body. It starts from the collarbone, breastbone, and ribs, and attaches to the upper arm bone (humerus) by a thick tendon.

This muscle is important for movements like pushing up from the floor, lifting weights, or tackling in sport. When the tendon tears, the muscle loses its anchor to the bone. This can lead to weakness, pain, and a change in chest shape that many people notice straight away.

Causes of a Pec Tear

A pec tear usually happens when the muscle is put under sudden stress while it is working hard. This is called an eccentric contraction, which means the muscle is lengthening while it is still under load. Some common causes include:

Heavy weight training, especially bench pressing
Contact sports such as rugby, wrestling, or football
A fall or sudden trauma to the chest or arm
The use of anabolic steroids, which may weaken tendons

Signs and Symptoms

A pec tear can cause symptoms that are both felt and seen. These may include:

A sudden sharp pain or a “popping” sensation in the chest or upper arm
Rapid swelling and bruising that may spread down the arm
A visible change in chest shape, such as an uneven appearance or the muscle bunching up
Weakness when pushing, lifting, or bringing the arm across the body
Difficulty using the injured side for sport or exercise

Diagnosis

When you see Mr Soong Chua with a suspected pec tear, he will begin by listening to how the injury happened and examining your chest and arm. He looks for signs such as bruising, swelling, changes in muscle shape, and weakness when moving the arm.

If further confirmation is needed, Mr Chua may arrange scans such as:

Ultrasound – a quick and simple test that can show if the tendon is torn
MRI scan – the most detailed scan, which shows the extent of the injury and helps plan the best treatment

This careful assessment ensures you receive the right diagnosis and an individualised treatment plan.

Non-Surgical Treatment

Not every pec tear needs surgery. Partial tears or injuries in people who are less active may be treated without an operation. Treatment usually includes:

Rest, ice, and pain medication
A sling for comfort
Physiotherapy to restore movement and build strength gradually

Non-surgical treatment can relieve pain and restore some function, but it often leaves a degree of weakness and a visible difference in the chest’s appearance. For people who want to return to heavy exercise or physical work, surgery is often the preferred option.

Pec Tear Surgery

For complete ruptures—especially in young, active people—surgery is usually recommended.

Mr Chua offers specialised Pectoralis Major Repair surgery to reattach the torn tendon to the upper arm bone using strong sutures or anchors.

This operation restores the tendon’s normal position, allowing the chest muscle to work properly again. Surgery offers the best chance of regaining chest strength, improving the chest’s appearance, and returning to sport, gym training, and physical activity.

If surgery is delayed beyond a month or two, repair can be much more challenging due to tendon contraction. Reconstruction is sometimes possible using grafts to replace or reinforce the tendon.

Pectoralis Major Repair

Recovery

Recovery after surgery generally includes:

Wearing a sling for around 4–6 weeks to protect the repair
Gradual physiotherapy to restore movement and strength
A return to light activities after a few months
Return to sports or heavy lifting around 6 months or longer, depending on recovery

FAQs

What is the main cause of a pec tear?
Most pec tears happen during heavy weight training, particularly the bench press, when the muscle is stretched under load. They can also occur in contact sports or from sudden trauma.
Do all pec tears need surgery?
No. Partial tears or tears in less active people may be managed without surgery. However, complete tears in active individuals usually do better with surgical repair.
How long does recovery take after surgery?
Most people wear a sling for a few weeks, then start physiotherapy. Strengthening takes time, and a full recovery often takes 6 months or more before returning to sports or heavy gym work.
What happens if I don’t get treatment for a pec tear?
Without treatment, a pec tear may result in ongoing weakness, difficulty lifting or pushing, and a noticeable difference in chest appearance. It usually won’t return to normal on its own.
When should I see a surgeon?
If you have sudden chest pain, bruising, and weakness after lifting or sport, it’s best to see Mr Soong Chua as soon as possible. Early diagnosis and treatment often lead to better results.