Research into choanal atresia focuses on improving the surgical remedies of the condition. One study of various surgical methods did not result in one procedure being more effective over others. Also, little is known about its root causes although one recent study suggests that exposure to common herbicides may play a role. Researchers also believe other environmental contaminants may lead to hormonal imbalances in pregnant women, leading to choanal atresia. The government currently lists no clinical trials for choanal atresia.