Galveston County Daily News, Dec. 30, 2008 In his weekly column, UTMB's Dr. Michael Warren urges people not to ignore the warning signs of blood. "Many people are scared by the sight of blood. This is one of blood's most important functions - to alarm. The sight of blood can draw attention to a health problem that could otherwise go unnoticed. ... Never ignore the sight of blood; it does no good to stick your head in the sand and hide from the truth."