04/24/2026
A pulled shoulder muscle — also known as a shoulder strain — is one of the most common causes of shoulder pain. And in many cases, it improves with rest, ice and time.
But what happens when it doesn’t?
If your shoulder still hurts days or even weeks later, there may be more going on than a simple strain. Alternatively, something in your recovery may be slowing down the healing process. Understanding what could be holding you back can help you get better faster.
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What is a shoulder strain?
A shoulder strain occurs when the muscles or tendons in the shoulder are overstretched or torn. This often happens with sudden movements, lifting or repetitive use.
Common symptoms include:
- Dull or aching pain in the shoulder
- Pain that worsens with movement
- Muscle tightness or spasms
- Limited range of motion
- Mild swelling or tenderness
Most mild strains improve within a couple of weeks — but if yours isn’t, it’s worth taking a closer look.
Not sure if it’s a shoulder sprain or shoulder strain? We’ve got you covered.
Why isn’t my shoulder strain getting better?
1. You’re returning to activity too quickly.
It’s easy to assume your shoulder is “good enough” once the pain starts to fade. But jumping back into workouts, sports or heavy lifting too soon can re-irritate the pulled muscle before it fully heals.
Even everyday activities and motions like reaching overhead can delay recovery if your shoulder isn’t ready. And if you really push your luck, you might even make it worse.
2. You’re not moving it enough.
On the flip side, keeping your shoulder completely still for too long can also slow healing.
After the initial rest period, gentle movement is important to:
- Prevent stiffness
- Maintain flexibility
- Promote blood flow to the area
Your shoulder needs to be flexible. Too much rest can lead to a tight, weak shoulder that takes longer to recover.
3. Poor posture is putting ongoing stress on your shoulder.
Modern posture — especially from desk work, phones and laptops — can quietly contribute to shoulder pain.
Rounded shoulders and a forward head position place constant strain on the muscles around your shoulder blade. Over time, this can:
- Prevent your pulled muscle from fully healing
- Cause ongoing irritation
- Lead to repeated injuries
If your daily posture doesn’t change, your shoulder may not either.
You may not be able to get away from your desk setup at work, but you can make sure it’s properly aligned while you’re there — keep your feet flat on the floor, keep your monitor at eye level and use a chair that supports your lower back. (And try to avoid sitting for over 30–40 minutes at a time.)
Incorporate exercises specifically to improve your posture, like squeezing your shoulder blades together for 30 seconds at a time, planks to strengthen your core and lower back, and glute bridges or squats to support your pelvis.
4. The supporting muscles are weak.
Your shoulder doesn’t work alone. It relies on a group of stabilizing muscles — including the rotator cuff and muscles around the shoulder blades — to function properly.
If these muscles are weak or imbalanced, your shoulder has to work harder than it should. That added stre ss can:
- Slow recovery from a strain
- Make pain linger longer
- Increase your risk of reinjury
5. It might not be just a pulled muscle.
Sometimes, what feels like a simple shoulder strain is actually something more complex.
Conditions that can mimic a pulled shoulder muscle include:
- Labral injuries (SLAP tears)
- Arthritis
If your pain is persistent, worsening or paired with weakness, it may be time for a more thorough evaluation.
How long should a shoulder strain take to heal?
Recovery depends on the severity of the injury.
- Mild strain (pulled muscle): 1–2 weeks
- Moderate strain: 3–6 weeks
- Severe strain or tear: Several months (and sometimes requires more advanced treatment)
You should notice gradual improvement over time. If your symptoms plateau or worsen, that’s a sign something isn’t progressing as expected.
When should I see someone for shoulder pain?
It’s a good idea to seek medical care if you experience:
- Pain that doesn’t improve after a couple of weeks
- Significant weakness in your arm or shoulder
- Difficulty lifting or rotating your arm
- Pain that interferes with sleep
- A popping sensation at the time of injury
- Numbness or tingling down the arm into the fingers
- Repeated shoulder injuries
Early evaluation can help identify the root cause and prevent a minor issue from becoming a long-term problem.
Recover from shoulder strains faster
A pulled shoulder muscle should get better — but if it’s not, you don’t have to keep guessing why.
At OrthoNebraska, our specialists can evaluate your shoulder, confirm that you aren’t dealing with something worse, and create a personalized treatment plan to help you heal fully and safely.
Schedule an appointment today and get your shoulder — and your routine — back on track.
