Understanding Common Causes of Shoulder Pain — and What You Can Do About It

Shoulder pain is one of the most common reasons people seek physiotherapy. Whether it starts suddenly after lifting something heavy or gradually worsens over time, shoulder pain can make everyday activities — like reaching overhead, sleeping, getting dressed, or exercising — surprisingly difficult.

The good news?

Most shoulder pain improves with the right treatment, and surgery is often not necessary.

Why Is Shoulder Pain So Common?

The shoulder is one of the most mobile joints in the body. It allows us to reach, lift, throw, and move in many directions — but that mobility also makes it more vulnerable to irritation and injury.

Common causes of shoulder pain include:

Rotator Cuff Pain

The rotator cuff is a group of muscles and tendons that help stabilize your shoulder.

Pain can develop from:

  • Repetitive lifting
  • Sports or exercise
  • Heavy overhead activity
  • Weakness or overuse

Common symptoms include:
✔ Pain lifting your arm
✔ Pain reaching behind your back
✔ Difficulty sleeping on the affected side

Many people assume pain means a tear, but this is not always true. Research shows many people have tendon changes on imaging without pain at all.

Shoulder “Impingement”

You may have been told your shoulder is “impinged.”

Today, we understand shoulder pain is often related more to irritation, weakness, stiffness, or movement dysfunction than something simply being pinched.

Physiotherapy, strengthening, and improving movement patterns are often very effective.

Frozen Shoulder

Frozen shoulder causes pain and significant stiffness, often making simple movements difficult.

You may notice:
✔ Trouble reaching overhead
✔ Difficulty putting on a jacket
✔ Pain sleeping
✔ A feeling that the shoulder is “stuck”

This condition is common between ages 40–65 and often responds well to guided rehabilitation.

Common Myths About Shoulder Pain

“I need an MRI.”
Not always. Most shoulder problems can be diagnosed through a detailed assessment.

“I should rest completely.”
Usually, too much rest makes shoulders stiffer and weaker. The right movement matters.

“I just need an injection.”
While injections may reduce pain temporarily, they often do not address the underlying issue.

What Can You Do?

If your shoulder hurts:

  • Keep it gently moving
  • Avoid painful aggravating activities temporarily
  • Use ice or heat — whichever feels better
  • Avoid pushing through sharp pain

If symptoms persist for more than a couple of weeks, interfere with sleep, or limit daily activities, it may be time for an assessment.

How Physiotherapy Can Help

At Body in Balance Physiotherapy, treatment may include the following:

✔ Hands-on manual therapy
✔ Exercise and strengthening programs
✔ Mobility restoration
✔ Acupuncture or dry needling
✔ Education and movement retraining

The goal is not just to reduce pain but also to help you move better and return to the activities you enjoy.

The Bottom Line

Shoulder pain is common, but most cases improve with the right diagnosis and treatment.

The sooner the issue is addressed, the easier recovery often becomes.

Experiencing shoulder pain?
The team at Body in Balance Physiotherapy is here to help. To book an assessment to see one of our highly trained professionals, call us at 905-778-9959.