Blood Stagnation often causes a pain of a stabbing or boring nature, hence the stabbing epigastric pain. This pain is much more intense than in any of the other Stomach patterns.

Stasis of Blood always manifests with dark-colored blood, hence the vomiting of dark blood in some cases.

Since the Stomach is related to the Large Intestine, the stasis of Blood extends to it and is manifested with blood in the stools.

The Purple tongue is also a staple symptom of Blood Stagnation. Please note that the tongue may not necessarily be Purple: if a patient has clear manifestations of Blood stasis but the tongue is not Purple, it simply means that the Blood stasis is not severe.