Excessive postextraction bleeding associated with Cordyceps sinensis: a case report and review of select traditional medicines used by Vietnamese people living in the United States.

Many older people who have emigrated from Vietnam to the United States continue to use the traditional medicines that they used in their country of origin. Clinicians trained in the West may not be familiar with these products. We reviewed 6 Asian traditional medicines that are popular among older Vietnamese people living in the United States. Each medicine has significant side effects that can lead to complications in patients undergoing surgery. Here, we present the case of a patient who used Cordyceps sinensis daily as a tonic and experienced prolonged bleeding after dental surgery.