Sayyiduna Abdullah bin Abbas (may Allah be pleased with them) said: There are four types of women (if they are slave women) whom it is not permissible to sell, and (whether free or slave) it is not permissible to marry them: a mad woman, a woman afflicted with leprosy, a woman afflicted with vitiligo, and a woman suffering from swelling of the private parts.
Hadith Referenceسنن الدارقطني / كتاب النكاح / 3674