The serratus anterior muscle can give you pain at the side of your chest, beside your shoulder blade or at the inside of your arm.
If trigger points are troubling your serratus anterior, you might experience pain mainly at the side of your ribcage and low down at the inner side of your shoulder blade.
Furthermore, pain can radiate down the whole inner side of your arm. Also your inner hand and 4th and 5th finger might be painful – not shown in the pictures below -.
The serratus mainly contributes to…
These are mostly limited to pain or a stitch during breathing.
The reason for this is that your chest expands during breathing which in turn elongates your serratus anterior.
If it is too tight or contains trigger points this may be painful. You even may feel short of breath.