All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu 'alayhi wa sallam, is His slave and Messenger. Since this disease is contagious, it is not permissible for you to marry this woman until you seek the permission of your first wife because you may get contracted with this disease, and so, infect and harm your first wife with it. The Hanbali scholars stated that it is not permissible for a leprous person to mix with a fit and healthy person except with his/her permission. For more benefit, please refer to Fatwa 82275. Allaah Knows best. (Source: islam_web) Classified in Women and Family > First Steps to Marriage