What diagnosis applies to a patient with sudden abdominal pain, diarrhea, and cold feelings?

The diagnosis of Cold Invading Large Intestine is appropriate in this scenario due to the specific symptoms presented by the patient: sudden abdominal pain, diarrhea, and feelings of coldness. In Traditional Chinese Medicine (TCM), the invasion of cold into the Large Intestine can manifest with acute symptoms such as sharp, cramping abdominal pain and loose stools.

A sudden onset of diarrhea often indicates that the body's normal functions have been disrupted, which aligns with the characteristics of an invasion. The cold feelings further indicate that the exterior cold is penetrating deeper, affecting the internal organs. This cold can cause the constriction of the intestines, leading to pain and disruptive bowel movements.

This diagnosis is supported by the symptom profile, while the other options do not encapsulate the acute nature and external cold aspects observed in this scenario. Large Intestine Collapse typically involves chronic issues with digestive capacity rather than acute, sudden pain and coldness. Cold Large Intestine also implies a more chronic condition, and Dry Large Intestine is not characterized by cold sensations or sudden diarrhea. Therefore, Cold Invading Large Intestine is the most fitting diagnosis for the symptoms presented.