how long does it take to heal a pulled or torn rear deltoid
Grade 1 - a minor tear of the muscle (10% of the muscle fibers). You may be able to continue your activity because the pain is minor twinge in your shoulder. The shoulder muscle feels achy and tightness for two to five days after the injury, recovery for healing is 7 to 10 days. Grade 2 - partial tearing of the deltoid muscle (90% of the muscle fibers). You will feel sharp pain and minor to moderate swelling of your shoulder. Lifting your arm to the front, side or back and carrying a small load (carrying a bag of groceries) will cause pain and may be difficult to do.