Massaging your rotator cuff involves working four distinct muscles that wrap around your shoulder blade and attach to your upper arm bone. Most of these muscles are accessible from the back of your shoulder, and with the right technique, you can reach them yourself or guide someone else to help. A meta-analysis in the Journal of Physical Therapy Science found that massage therapy improved shoulder flexion by about 18 degrees and abduction (lifting the arm out to the side) by about 22 degrees on average, so the payoff for learning proper technique is real.
Where the Four Muscles Actually Are
Before you start pressing into your shoulder, it helps to know what you’re targeting. The rotator cuff is made up of four muscles: the supraspinatus, infraspinatus, teres minor, and subscapularis. Together, they hold the ball of your upper arm bone snugly in the shallow socket of your shoulder blade. Without them, your arm would slide out of place every time you reached for something.
The supraspinatus sits on top of your shoulder blade, just above the bony ridge (the spine of the scapula) you can feel running across your upper back. It’s responsible for initiating the first 15 degrees when you lift your arm out to the side. The infraspinatus covers a large area just below that same ridge, filling most of the flat surface of your shoulder blade. The teres minor sits right below the infraspinatus, along the outer edge of the scapula. Both the infraspinatus and teres minor rotate your arm outward, the motion you’d use to cock your arm back for a throw. The subscapularis is the tricky one: it lives on the front surface of the shoulder blade, sandwiched between the scapula and your rib cage, which makes it the hardest to reach.
How to Massage the Infraspinatus and Teres Minor
These two muscles are the easiest to access and often the most rewarding to work on. Trigger points in the infraspinatus frequently sit in the center of the muscle or just below the inner end of the scapular spine. What makes them deceptive is their referral pattern: a knot in the infraspinatus can send pain down the front and outside of your arm, into your forearm, and even into your hand. People often mistake this for a nerve issue or a torn cuff when it’s actually a muscular trigger point.
To find the infraspinatus, reach your opposite hand across your chest and place your fingers on the flat, fleshy area below the bony ridge of your shoulder blade. You’re looking for tender spots or taut bands of muscle. Once you find one, apply steady pressure with your fingertips or a lacrosse ball against a wall. Hold the pressure for 20 to 30 seconds, keeping it firm but tolerable, around a 6 or 7 out of 10 on a pain scale. You should feel the tenderness start to decrease as the muscle releases.
For the teres minor, move your fingers slightly lower and toward the outer edge of your shoulder blade. The technique is the same: sustained pressure on tender spots, or slow, small circular movements. A lacrosse ball or tennis ball placed between your back and a wall gives you leverage without tiring out your hand. Lean into it, adjusting angle and pressure by shifting your body weight.
How to Reach the Supraspinatus
The supraspinatus sits in a shallow groove on top of your shoulder blade, partially tucked under your upper trapezius muscle. To find it, place your fingers on top of your shoulder and slide them backward toward the spine of the scapula. The muscle belly fills the space just above that bony ridge. It’s smaller than the infraspinatus, and the tissue can feel quite dense.
Use your opposite hand’s fingertips to apply pressure here, working slowly across the muscle from the inner edge of the scapula outward toward the shoulder joint. Short, slow strokes perpendicular to the muscle fibers (cross-fiber friction) can help break up adhesions. This technique works by increasing mechanical load to the tissue and reducing the molecular cross-linking that builds up during healing, essentially helping collagen fibers realign in a more functional pattern. Keep each stroke slow and deliberate, spending about 30 seconds to a minute on each tender area before moving on.
Getting to the Subscapularis
The subscapularis is the one muscle most people skip because it’s tucked against the front of your shoulder blade, facing your ribs. But it’s a common source of deep, achy shoulder pain, particularly at the front of the joint, and it plays a major role in preventing the arm from dislocating forward.
To access it, lift your arm slightly out to the side so your shoulder blade wings away from your rib cage a bit. Reach into your armpit from the front with your opposite hand, fingers pointing toward your back. You’ll feel the edge of the scapula. Press gently into the fleshy tissue on the underside of that bone. This area can be quite sensitive, so start lighter than you think you need to. Small, gentle strokes along the muscle or sustained pressure on tender points both work well here. If it feels like you’re just poking into your armpit without finding muscle, try adjusting the angle of your arm: rotating it slightly inward or outward can make the subscapularis more accessible.
Using a Massage Gun Safely
Percussion massagers can work well on the infraspinatus and teres minor because those muscles have enough bulk to absorb the vibration. Start on the lowest speed setting and keep the gun moving slowly across the muscle belly. Limit your time to two to three minutes per muscle group.
The critical rule with a massage gun around the shoulder is to avoid bony areas. Hitting the spine of the scapula, the acromion (the bony point on top of your shoulder), or the shoulder joint itself can irritate tendons and the bursa sacs that cushion them. Stay on the fleshy muscle tissue and steer clear of any spot where you can feel bone close to the surface. Skip the massage gun on the supraspinatus unless you’re very precise, since the muscle is thin and sits close to bone. Don’t use it on the subscapularis at all; the area is too confined and too close to nerves and blood vessels in the armpit.
When Not to Massage Your Rotator Cuff
Massage is appropriate for muscular tightness, trigger points, and general stiffness, but there are situations where it can make things worse. If you’ve had a fall or direct impact and suspect a fracture, massage is off the table until imaging rules it out. The same goes for acute inflammation: if your shoulder is hot, swollen, and painful at rest, adding pressure to inflamed tissue will amplify the pain rather than resolve it.
Trigger points in the infraspinatus and teres minor are frequently misdiagnosed as rotator cuff tears or cervical disc problems because the referred pain patterns overlap. If you’ve been massaging consistently for two to three weeks without improvement, or if you have significant weakness when lifting your arm (particularly an inability to hold your arm up against light resistance), the issue likely goes beyond muscular tension and warrants professional evaluation.
Making It Part of a Routine
For general maintenance, massaging each of the accessible rotator cuff muscles for one to two minutes, three to four times per week, is a reasonable starting point. Pair the massage with gentle range-of-motion exercises afterward, while the tissue is warm and pliable: slow arm circles, reaching behind your back, and wall slides where you slide your hands up a wall overhead. The combination of soft tissue work followed by movement tends to produce better mobility gains than either approach alone.
If you’re working through an existing issue like chronic tightness or a trigger point that refers pain, daily sessions of five to ten minutes total can accelerate progress. Back off if soreness from the massage itself lasts more than 24 hours, as that’s a sign you’re using too much pressure. The goal is to feel a “good hurt” during the session and improved mobility afterward, not to create new inflammation.