Shoulder pain can develop gradually or strike suddenly, affecting everything from your sleep to your ability to drive, work, or lift your arm. Whether it’s a dull shoulder ache, stabbing pain in your shoulder blade, or limited range of motion, it’s essential to understand the cause of the discomfort so you can effectively treat it.
In this article, we’ll explore the most common causes of shoulder pain, how to identify them, and what treatment options, including shoulder stretches, exercises, and physiotherapy, can help you find relief and prevent ongoing issues.
Understanding the Shoulder Joint
The shoulder joint is one of the most complex and mobile joints in your body. It consists of three main bones:
- The humerus (upper arm bone)
- The scapula (shoulder blade)
- The clavicle (collarbone)
These bones are supported by a complex network of shoulder muscles, tendons, and ligaments, which enable a wide range of motion. However, that mobility comes at a cost, making the joint vulnerable to instability, strain, and injury.
What Are the Common Causes of Shoulder Pain?
Shoulder pain can be due to injury, overuse, poor posture, or underlying medical conditions. Here are some of the most common reasons your shoulder is in pain:
1. Rotator Cuff Injuries
The rotator cuff is a group of muscles and tendons that stabilise the shoulder. Tears, inflammation, or impingement can cause a dull ache in the shoulder, which is often worse at night or when lifting the arm.
Symptoms:
- Weakness in the arm
- Pain lifting or rotating the shoulder
- Clicking or popping sounds
2. Frozen Shoulder (Adhesive Capsulitis)
This condition causes stiffness and pain, often without a clear injury. The shoulder joint capsule becomes inflamed and tight, limiting movement.
More common in: Women over 40, especially those with diabetes or thyroid disorders.
Symptoms:
- Gradual loss of shoulder mobility
- Pain when sleeping or reaching overhead
- Lasts months to years without treatment
3. Shoulder Bursitis
Bursitis occurs when the bursa—a small fluid-filled sac that cushions the joint—becomes irritated or inflamed. It’s often caused by repetitive motion or pressure on the joint.
Symptoms:
- Sharp pain with movement
- Tenderness over the outside of the shoulder
- Pain lying on the affected side
Treatment:
Rest, ice, and exercise for shoulder bursitis to reduce inflammation and restore strength.
4. Poor Posture and Muscle Imbalance
Slouching or rounded shoulders can overload certain muscles and underuse others, causing a sore shoulder or pain in the shoulder blade area.
Symptoms:
- Constant dull pain or tension
- Aching scapula or upper back discomfort
- Reduced range of motion
Improving posture and stretching tight chest muscles while strengthening back and shoulder stabilisers can bring relief.
5. Shoulder Impingement Syndrome
This condition occurs when the rotator cuff tendons become pinched between the bones in the shoulder.
Symptoms:
- Sharp pain when lifting your arm sideways
- Weakness or loss of motion
- Pain worsens with overhead activity
6. Shoulder Dislocation or Instability
A traumatic injury or repetitive strain may cause the shoulder joint to partially or fully dislocate.
Symptoms:
- Visible deformity or displacement
- Pain, swelling, and bruising
- Feeling of the shoulder “slipping out”
Immediate medical care followed by a tailored physiotherapy program is essential for proper recovery.
Shoulder Pain in Females: Are There Specific Causes?
While shoulder pain can affect anyone, the causes of shoulder pain in females may include:
- Hormonal fluctuations impacting joint and soft tissue function
- Higher incidence of autoimmune conditions (e.g., rheumatoid arthritis)
- Increased risk of frozen shoulder
- Postpartum changes affecting posture and load-bearing
Identifying these unique contributors is important for creating an effective, individualised treatment plan.
How to Identify the Source of Your Shoulder Pain
Ask yourself the following:
- When did the pain start? Was there a specific injury or did it build gradually?
- Where exactly is the pain located? Is it at the front, side, or deep in the joint?
- What movements make it worse? Reaching overhead? Sleeping on one side?
- Is there any weakness, clicking, or numbness?
If the pain persists, worsens with activity, or affects your ability to perform everyday tasks, it’s time to see a physiotherapist or a GP.
How to Treat Shoulder Pain
Treatment depends on the cause, severity, and your individual lifestyle or physical demands. Most cases of shoulder pain and discomfort respond well to a combination of rest, gentle movement, and targeted rehabilitation.
1. Shoulder Stretches
Shoulder stretches help loosen tight muscles and improve mobility. Try:
- Pendulum Stretch: Lean forward, let the affected arm dangle, and gently swing it in circles.
- Crossover Arm Stretch: Pull one arm across your chest with the opposite hand, hold for 30 seconds.
- Sleeper Stretch: Lie on your side with the painful shoulder down, gently press the forearm down to stretch the posterior capsule.
2. Best Shoulder Exercises
Strengthening the shoulder muscles helps stabilise the joint and prevent further injury.
Isometric External Rotation
With your elbow at your side, push your hand outward against a wall or resistance without moving your arm.
Wall Push-Ups
Start standing a few feet from a wall and perform gentle push-ups. Builds shoulder and scapular control.
Scapular Squeezes
Pinch your shoulder blades together and hold for 5 seconds. Repeat 10–15 times.
3. Frozen Shoulder Exercises
- Towel stretch: Use a towel to gently pull the affected arm behind your back.
- Finger walk: Face a wall and “walk” your fingers upward to increase shoulder flexion.
4. How to Strap a Shoulder
Taping can support an injured or weakened shoulder, reducing pain and improving movement during the healing process.
Step 1: Apply the First Strip
Begin by anchoring the tape at the top of the shoulder (acromion) without any stretch. Then, gently stretch it down towards the centre of the deltoid muscle.
Step 2: Apply the Second Strip
Start again at the acromion. Stretch the tape slightly as you wrap it around the front of the shoulder, securing the end back near the top.
Step 3: Apply the Third Strip
Using the same starting point, guide the tape with light tension around the back of the shoulder, finishing at the top where you began.
Final Step: Activate the Adhesive
Firmly rub down all three strips to ensure the tape sticks properly and the adhesive is fully activated.
Apply sports tape in a way that limits excessive movement without restricting circulation. Always consult your physio to ensure proper tape placement and technique.
5. Physiotherapy for Shoulder Injuries
Seeing a qualified physiotherapist is the most effective way to treat ongoing shoulder issues. A physiotherapist can:
- Accurately diagnose the issue
- Provide manual therapy and dry needling
- Design a targeted rehab program
- Monitor progress and adjust treatment as needed
If you’re dealing with shoulder injuries or ongoing discomfort, don’t wait—early intervention leads to better outcomes.
When to Seek Professional Help for Shoulder Pain
Consult a physiotherapist or doctor if:
- The pain lasts longer than a week
- You experience sharp or severe pain during movement
- There’s noticeable weakness or limited mobility
- Swelling or bruising appears after an injury
- Home treatments haven’t improved symptoms
Don’t Shoulder the Pain Alone – Work with a Physiotherapist
Whether you’re struggling with a sore shoulder, an aching scapula, or wondering why your shoulder is in pain, the key is to listen to your body and take action early. Identifying the root cause and following a structured treatment plan, including shoulder stretches, exercises, and physiotherapy, can help you recover fully and prevent future problems.
Need Help with Shoulder Pain?
At BodyMotion Physiotherapy in Mitcham, we specialise in diagnosing and treating a wide range of shoulder conditions. From frozen shoulder exercises to rehab after dislocation, we’ll support you every step of the way.
Book Your Appointment Online or contact our friendly team if you have any questions.
