By Four Common Causes and What to Do Next
If shoulder pain is waking you at night, making overhead reach uncomfortable, or causing you to hold back in the gym or at work, it’s worth checking where it may be coming from. Shoulder pain is not always caused by the shoulder alone.
At Happy Spine in Christchurch, we commonly see shoulder pain that lingers despite rest, stretching, or “waiting it out.” A good first step is to work out the most likely driver, such as shoulder tissues, the AC joint, the neck and posture, or something that may need imaging.
Signs It’s Worth Getting Checked
Consider an assessment if any of these sound familiar:
- You cannot sleep on that side, or it wakes you at night
- Reaching overhead feels painful or weak
- Putting your arm into a coat sleeve or bra strap position is uncomfortable
- Reaching into the back seat or fastening a seatbelt flares it up
- It has been more than three weeks, and it’s not clearly improving
- You notice tingling, numbness, burning, or aching into the arm or hand
- You have reduced sport, exercise, or daily tasks because it does not feel reliable
A Quick Safety Note
Seek urgent medical advice if shoulder pain:
- follows a major fall or impact, or you suspect a fracture or dislocation
- comes with visible deformity or swelling that concerns you
- causes sudden, significant weakness, such as being unable to lift the arm
- occurs alongside fever or feeling unwell
- is linked with chest pain, breathlessness, or feeling faint
- comes with unexplained weight loss
- includes worsening numbness or weakness into the arm or hand
Four Common Patterns of Shoulder Pain
Rotator cuff-related shoulder pain
The rotator cuff helps control shoulder movement. Irritation, overload, or minor tissue injury can lead to pain lifting the arm, weakness overhead, discomfort lying on that shoulder, or pain through part of the movement.
This pattern is common among active adults, tradespeople, gardeners, and gym-goers. Many people improve with a plan that may include temporary activity changes, targeted exercises, and manual care when appropriate.
AC joint irritation (top-of-shoulder pain)
The acromioclavicular (AC) joint sits at the top of the shoulder where the collarbone meets the shoulder blade. It can become irritated after a fall onto the shoulder, repetitive strain, or gradual wear over time.
Pain is often localised on the top of the shoulder and may be worse when reaching across the body, doing pressing movements such as push-ups or bench-type exercises, or lying directly on that side.
Structural shoulder joint problems
Sometimes pain comes from the main ball-and-socket joint. This may include arthritis, labral or cartilage issues, or a more significant tissue injury.
We also see frozen shoulder, characterised by gradual stiffness and limited movement in multiple directions, often accompanied by night pain. When this pattern is suspected, early assessment can be useful.
If a structural problem is suspected, imaging such as an X-ray or MRI may be appropriate. An assessment can help identify when symptoms may be outside the scope of conservative care and when referral may be the safest next step.
Neck and posture-related shoulder pain
Shoulder pain can be influenced by the neck and posture, particularly with prolonged desk work and device use. When the head sits forward, it can affect how the neck, upper back, and shoulder blade work together. This may irritate nerves, change shoulder mechanics, and refer pain into the shoulder.
Some people also notice pins and needles into the arm, numbness into the hand, or aching and burning down the arm. Shoulder pain may appear first, with arm symptoms developing later. That is why a proper assessment looks beyond the shoulder itself.
A Simple Self Check
This is not a diagnostic test. It’s simply a way to notice a restriction. Stop if you get sharp pain and do not force it.
Stand with your heels, bottom, and upper back gently against a wall. Bring your head back as close to the wall as comfortably as possible. Slowly lift one arm overhead, then the other, then both. Notice whether one side feels easier, whether symptoms appear, and whether you need to arch your back or shrug to get your arm up. If you notice a clear difference, posture and upper spine mechanics may be at play.
How We Work Out What Is Going On
We also consider whether imaging or referral may be appropriate. If we suspect imaging or specialist input is needed, we will discuss the next steps with you.
What to Do Next
Reduce or modify the movements that trigger pain for the next week, and avoid pushing through sharp pain. Keep the area gently moving within comfort and consider heat or ice if it feels soothing. If it’s affecting sleep, not improving, or you notice tingling, numbness, or weakness, book an assessment so you are not guessing.
Ready to Work Out What’s Driving Your Shoulder Pain?
Book online or call 03 348 3536 today! Not sure if it’s worth booking? Contact Happy Spine to request a 10-minute shoulder chat by phone or in person.