She was born 6 December 1959. Ethnic is Karen. She graduated Institute of Medicine-2, Yangon
She is a Burmese medical doctor who since 1989 has lived in Mae Sot, on the Thai-Burmese border., Dr. Maung left Burma (Myanmar) after the 8888 Uprising and has since run a clinic treating Burmese refugees, migrants and orphans at Mae Tao Clinic in Mae Sot on the Thai-Burmese border, together with 100 paramedics and teachers.