# Why can the same shoulder ache have different causes? *Arizona Shoulder Pain Clinic Reviews | Why Shoulders Hurt* > Arizona shoulder pain clinic reviews with a plain guide to common soreness, stiff movement, home help, and medical visits. Your arm may feel heavy as you lift it. Reaching behind your back can bring a tight pull. Nighttime may be worse than daytime. Those feelings don't name one cause because several shoulder parts can make the same area sore. ## Which shoulder parts often become sore? The shoulder is a ball resting in a shallow socket, much like a golf ball on a tee. The rotator cuff is the group of muscles and tendons around it. Those tissues help hold the ball steady as you lift. They can grow sore from strain, wear, or a tear. A soft lining around the joint can also tighten. Doctors call it the capsule. When it stiffens, reaching gets hard, while arthritis can make the joint surface rough and sore. Neck pain can travel into the shoulder, so the exam checks more than one spot. ## What helps, and when do you need an exam? Gentle daily movement can keep stiffness from building. Stop short of a sharp catch. Use warmth before moving and cold after hard use. Support the arm during sleep, and check medicine safety with your doctor. Have the shoulder checked when soreness lasts or limits normal tasks. Your story, motion, and strength guide the next step. Imaging doesn't always come first. It helps when the result could change the plan. For ongoing soreness, QC Kinetix offers regenerative treatments from medical providers. These options aim to support joint preservation without surgery. The clinician can explain who may fit and who won't. Get timely help for a hard fall, sudden weakness, chest symptoms, or a red swollen joint. ## Evidence sources 1. In a nationally representative Finnish population sample of 602 adults aged 41-76 who had bilateral 3-Tesla shoulder MRI regardless of symptoms, rotator cuff abnormalities were found in 98.7% of participants (25% tendinopathy, 62% partial-thickness tear, 11% full-thickness tear). Abnormalities were present in 96% of ASYMPTOMATIC shoulders. Only full-thickness tears were more common in symptomatic shoulders, and that difference all but disappeared after adjustment (absolute difference 0.8%, 95% CI -3.4% to 6.0%). Ibounig T, et al. — [Incidental Rotator Cuff Abnormalities on Magnetic Resonance Imaging.](https://pubmed.ncbi.nlm.nih.gov/41697693/). *JAMA Intern Med*, 2026. 2. Ultrasound screening of 664 residents of one village found full-thickness rotator cuff tears in 22.1%, rising steeply with age: 0% in the 20s-40s, 10.7% in the 50s, 15.2% in the 60s, 26.5% in the 70s and 36.6% in the 80s. Symptomatic tears were only 34.7% of all tears - asymptomatic tears were TWICE as common as symptomatic ones. Minagawa H, et al. — [Prevalence of symptomatic and asymptomatic rotator cuff tears in the general population: From mass-screening in one village.](https://pubmed.ncbi.nlm.nih.gov/24403741/). *J Orthop*, 2013. 3. Among 283 shoulders with an ultrasound-confirmed full-thickness rotator cuff tear in a general-population checkup, 65.4% had NO symptoms. What separated symptomatic from asymptomatic tears was a positive impingement sign, weakness in external rotation, and the tear being in the dominant arm - not the existence of the tear. Yamamoto A, et al. — [Factors involved in the presence of symptoms associated with rotator cuff tears: a comparison of asymptomatic and symptomatic rotator cuff tears in the general population.](https://pubmed.ncbi.nlm.nih.gov/21454096/). *J Shoulder Elbow Surg*, 2011. 4. A systematic review of 61 studies across high-, middle- and low-income countries found a MEDIAN community prevalence of shoulder pain of 16% (range 0.67% to 55.2%), a median primary-care prevalence of 2.36%, and a median incidence of 37.8 per 1,000 persons per year. Estimates were generally higher for women and in high-income countries. Lucas J, et al. — [A systematic review of the global prevalence and incidence of shoulder pain.](https://pubmed.ncbi.nlm.nih.gov/36476476/). *BMC Musculoskelet Disord*, 2022. 5. Analysis of US Medicare claims found a one-year prevalence of adhesive capsulitis of approximately 0.35% among adults aged 65 and over - roughly 142,000 older Americans - with diabetes and Parkinson's disease significantly associated with the diagnosis. Medications, distal trauma and infections did not differ between cases and rotator-cuff-tear controls, so the trigger for primary frozen shoulder remains unidentified. Sarasua SM, et al. — [The epidemiology and etiology of adhesive capsulitis in the U.S. Medicare population.](https://pubmed.ncbi.nlm.nih.gov/34579697/). *BMC Musculoskelet Disord*, 2021. 6. A systematic review of adverse effects found a single corticosteroid injection for rotator cuff tendinosis was associated with increased risk of REVISION rotator cuff repair (odds ratios ranging 1.3 to 2.8) when given up to a year before surgery, and with postoperative infection (OR 2.1, 1.5-2.7) when given within a month before repair. Risk was highest within 6 months of surgery (OR 1.8) or with two or more injections in a year (ORs 2.1 to 3.3). Puzzitiello RN, et al. — [Adverse Impact of Corticosteroid Injection on Rotator Cuff Tendon Health and Repair: A Systematic Review.](https://pubmed.ncbi.nlm.nih.gov/31862292/). *Arthroscopy*, 2020. 7. A current-concepts review of non-operative management of shoulder osteoarthritis states plainly that biologics such as PRP, bone marrow aspirate concentrate and mesenchymal stem cells 'are helpful in decreasing shoulder pain but neither stopping the progression nor improving OA', and that first-line care is physical therapy with NSAIDs. Yamamoto N, et al. — [Non-operative management of shoulder osteoarthritis: Current concepts.](https://pubmed.ncbi.nlm.nih.gov/37321293/). *J ISAKOS*, 2023. ## Would you like to ask about your shoulder? The clinic link is separate from public reviews. Your first conversation costs nothing. You can decide whether to go further. book a free consultation: --- Clear answers for a sore shoulder. Plain help with shoulder soreness, care choices, and Arizona clinic reviews. Plain help for shoulder soreness and care choices. 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