Nonglak Srisaeng assigned Chalermpong Klubdee, an official of the Foundation for Consumers, and Sakolrat Ritsamitchai, a lawyer, to file the lawsuit on her behalf.
The lawsuit was filed with the consumers' case division of the Civil Court.
The lawsuit alleged that a mistake on the part of the hospital caused Nonglak to become bed-ridden after she received an operation to remove a tumor in her uterus in August, 2016.
She is demanding Bt19 million in compensations for the difficulties to live her life and for subsequent medical costs.