Gardnerella is basically a kind of gram variable bacteria and causes Gardnerella Vaginalis. It is a disease usually found in women and it can be sexually transmitted to the partner.but it doesnot cause any complications to the partner. You do need to see a doctor as he will see through test whether you actually have it or not. Also the treatment is usually use of antibiotics such as metronidazole or clindamycin. For details see the link below:
www.medic8.com
www.medic8.com