CDH Awareness Month Trivia – Day 30 Dawn Ireland April 30, 2019 (Last updated: March 30, 2019) 0 comments Left-sided congenital diaphragmatic hernia is more common than right-sided CDH. Bilateral CDH is rare. About The Author Dawn Ireland See author's posts Post navigation Previous: Research: Selected acculturation factors and birth defects in the National Birth Defects Prevention Study, 1997-2011Next: CDH International Virginia Ambassador Clarissa Staggs