Ninja rocks are broken shards of spark plugs formed by smashing the ceramic portion of the spark plug with a hammer or other large object.ince they can quickly and quietly fracture the glass side windows on most cars, ninja rocks have been used in  smash-and-grab  auto burglaries since at least 1995 (at least by Slovenian car burglers).
What is recurrent bacterial vaginosis? Recurrent bacterial vaginosis is an imbalance of the vaginal bacteria normally present in the vagina. Bacterial vaginosis is a common condition and treatment is available; however, in some women the condition may recur or even become chronic, requiring multiple and sometimes long-term treatments.
Bacterial vaginosis (BV) is a polymicrobial, noninflammatory syndrome involving the lower genital tract that is characterized by a microecologic imbalance (including pH disturbance) and the replacement of lactobacilli-predominant flora with G. vaginalis, anaerobes, and Mycoplasma hominis.