Health Conditions that Cause Mucus in Stool. A sudden onset of mucus in the stool, accompanied by urgent diarrhea, cramping, fever, and blood in the stool may be indicative of a bacterial infection. If you are having any of these symptoms, contact your physician immediately.
Atelectasis, or localized obstruction of the lungs that may result from mucus plug obstruction, can occur resulting to the collapse of a portion of the lungs. This is enumerated by the study published by Respiratory Care in September 2007.
For some women, the mucous plug comes out gradually over a few days, and they never realize what is happening. Other women see the mucous plug but no blood. Whether you see it or not, you should not be alarmed. The release of the mucous plug is just one sign of your body preparing for labor.