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.
COMBINATIONS OF CAUSES. Trigger points frequently arise from a combination of these causes. A person may have a whiplash injury from a car accident (trauma) and then, months or years later, develop terrible headaches following excessive work at the computer (repetitive strain). An initial injury, in other words, can set the stage, making the person more prone to develop trigger points from later stresses.