Since your MRI has ruled out any mass lesion and the symptoms started after rowing with improper form, this does sound more like trapezius muscle overuse with trigger points/muscle spasm rather than a dangerous swelling. Muscle knots and localized tightness in the upper trapezius are quite common after repetitive strain or faulty exercise mechanics.
Dry needling can be helpful in selected cases for reducing trigger points, muscle tightness and pain, especially when done by a trained physiotherapist. Many patients experience relief in stiffness and improved mobility after a few sessions. However, it should usually be combined with posture correction, stretching, scapular strengthening and correction of rowing technique rather than relying on dry needling alone.
If the area is actively inflamed, very swollen, red, hot or highly tender, reassessment may be needed before proceeding.
Next Steps
Continue physiotherapy with posture and scapular strengthening exercises
• Avoid heavy rowing or upper back overload temporarily
• Discuss risks/benefits of dry needling with your physiotherapist
• Start gradual stretching of trapezius and upper thoracic region
• Correct exercise form before returning to gym activities
Health Tips
Mild soreness after dry needling can occur for 24-48 hours. Ensure the procedure is done by a qualified professional using sterile technique. Long-term improvement depends more on muscle balance and movement correction than only releasing trigger points.