Seems it's possible if you're overdoing the lactobacillus.
http://www.google.ca/search?sourceid=navclient&aq=hts&oq=&ie=UTF-8&rlz=1T4GGNI_enCA464CA464&q=Cytolitic+Vaginosis#rlz=1T4GGNI_enCA464CA464&q=Cytolytic+Vaginosis+caused+by+probiotics&spell=1&sa=X&ei=GZXIUcvdCIrXyAHjvYBg&ved=0CCgQvwUoAA&bav=on.2,or.r_qf.&bvm=bv.48293060,d.aWc&fp=913a2834ee8e8075&biw=820&bih=614