Charlotte Yhlén (1839-1919) was the first Swedish woman with medical education. New research has shed light on this forgotten pioneer. Charlotte was born in a Southern Sweden in a family without academical tradition. In her youth she got inspired by the woman emancipation movement. At an age of 28 she emigrated to the USA and studied at the Woman's Medical College of Pennsylvania. Her student thesis dealt with glaucoma. After graduation, Charlotte applied for work in Sweden but got rejected. Therefore, she moved back to the USA to work at Woman's Hospital of Philadelphia and later with a private practice as a general practitioner. In 1874, she married a Norwegian engineer and the couple got two children. Her husband's successful company Tinius Olsen Company was probably the reason why she gave up her medical career in her 50s. The article describes the conditions for love and work for the first Swedish women with academical education.