Dr. Oletha Chisolm discusses the 8th Annual Walk to Fight Colorectal Cancer March 23rd 9am at Tom Bass Park 15108 Cullen Blvd. For more info call 713-668-HOPE or visit http://www.hopethroughgrace.org March is National Colorectal Cancer Awareness Month. Colon Cancer is these second leading cancer killer of men and women in Houston.