If your surgical wound becomes infected, the area is more likely to become weak. You may also get a hernia next to a stoma. A stoma is an opening in your abdomen that drains stool from your bowels. Muscle strain: Heavy lifting and pregnancy can strain the muscles in your abdomen.
WHAT THEY DO... Active trigger points cause muscle pain. Latent trigger point can cause stiffness in a muscle. Triggers are created by a protective mechanism in your body - a message that tells a muscle to tighten up to prevent further damage.
Iliopsoas trigger points are especially aggravated by prolonged sitting with the hips acutely flexed 90 degrees or more (i.e., on a non-tilting seat pan). Although the muscle is located on the front of the body, trigger point pain from this muscle is usually referred to the low back (Fig.