Problems Holding Arms Up (as when folding sheets): which trigger points cause it and how to treat them

Functional weakness without nerve injury can result from severe inhibition by active trigger points in the cuff and deltoids. Identifying which muscle reproduces the patient's familiar pain on palpation guides treatment and often produces meaningful change alongside standard care.

Subscapularis — Posterior shoulder, deep axilla, and a 'wristband' band of pain around the wrist.

Infraspinatus — Deep anterior shoulder pain (felt 'inside' the joint), spreading down the lateral arm and sometimes into the forearm and radial hand.

Supraspinatus — Deep lateral shoulder pain over the deltoid, sometimes extending down the lateral arm to the elbow.

Trapezius — Pain refers up the side of the neck to the temple and angle of the jaw, often described as a unilateral tension headache. May also refer to the back of the ear.

Levator Scapulae — Angle of the neck and shoulder, along the vertebral border of the scapula and into the posterior shoulder.

Work the muscles in the order above. Treat one muscle fully — locate the taut band, hold sustained pressure until the ache eases, then take the muscle through its full range once — before moving to the next. Re-test the painful movement after each muscle so you can tell which one is actually driving the pattern: the muscles most often responsible here are Subscapularis, Infraspinatus and Supraspinatus.

If two or three muscles each give partial relief, that is the normal picture in a long-standing pattern; expect to revisit them over several sessions rather than resolving everything in one.

Myofascial referral is a pattern of muscular origin, and it behaves like one: pressure on a specific spot reproduces the familiar pain, the pain moves with load and position, and it eases after release and movement. Findings that do not behave that way belong to a different problem.

Seek assessment rather than self-treating when pain is constant and unchanged by position, wakes you at night without a mechanical trigger, follows a clear dermatome with numbness or weakness, or comes with fever, unexplained weight loss, or a recent significant injury. The same applies when four to six weeks of consistent self-care produces no change at all.