The coracobrachialis muscle is a small muscle in the front of the shoulder. It is often missed as a source of pain in the front of the shoulder. It originates on the top of the coracoid process and proceeds out to the middle of the humerus between the attachments of the tricep and the brachialis muscles.

The primary function of coracobrachialis is to assist in flexion of your arm at the shoulder and adduction of your shoulder. It also assists the rotator cuff in stabilizing your shoulder joint when your arm is abducted.

Trigger points in your coracobrachialis cause pain deep in the front of your shoulder, and sometimes extending down the back of your arm, Referred pain can also extend to the backside of your hand and forearm. It will typically skip your wrist. You may have trouble reaching behind your back when your arm is raised and your elbow is bent. You may also have trouble reaching across your body.

Corocacobrachialis trigger points are typically activated from repetitive overload in activities with your arms outstretched, pushups, benching pressing, or throwing. This most often happens secondary to myofascial dysfunction in other muscles.

Corrective actions include postural corrections, trigger point pressure release, stretching, and avoiding activities that overload the muscle.

If you maintain a posture or activity that activates a trigger point it will continue.

Trigger points can be activated anywhere in the coracobrachialis from unaccustomed eccentric loading, eccentric exercise in an unconditioned muscle, maximal or sub-maximal concentric loading.

Placing the muscle in a shortened or lengthened position for an extended period of time can also activate trigger points in the coracobrachialis. This happens most often when we are sleeping.

Activities that can overload your coracobrachialis include repeated adduction. Examples include push-ups, throwing a baseball, swimming, rock climbing, playing tennis, or golf.

Occupations that involve lowering items from shoulder height or higher down to the floor (eccentric contraction) or lifting objects with your arms extended put you at risk.

Prolonged immobilization of your arm in a sling, in an adducted and internally rotated position from an injury or surgical procedure, can activate trigger points in the coracobrachialis.

Myofascial self-care always starts with establishing a foundation of diaphragmatic breathing. Once you have taken a few moments to get in touch with your breath, we move on to self-compression.

You can use pressure self-release for coracobrachialis while seated, standing, or side-lying positions.

However, as you can see, compared to other muscles in your arm this muscle very small and it is easy to miss. Using your hand from the unaffected side, place your thumb along your humerus in your underarm, beneath your pec major muscle. Press your elbow into the side of your body to feel the muscle contract. Find the tender spot and apply pressure for up to 30 seconds as pain decreases. You can do this three to five times.

There are a lot of blood vessels and nerves in the armpit, so any self- release should be done with caution. If you feel tingling or circulation changes in your arm you should reposition and take a different approach.

Alternatively, if you position yourself carefully, on your side, with your arm extended, you might be able to access a small part of subscapularis in this way.

Following pressure self-release, you should move your arm through its range of motion and prepare to gently stretch your coracobrachialis.

You can use your breath to deepen the stretch.  As you inhale, gently push into the doorframe. As you exhale, gently stret