Gallbladder cancer is rare but aggressive disease that often shows no early symptoms, says Dr Aparna Govil Bhasker, a bariatric and laparoscopic surgeon in Mumbai. However, persistent abdominal symptoms such as persistent pain in upper right abdomen, Nausea/vomiting, Jaundice, unexplained weight loss, Fever, or abdomen lump shouldn't be ignored. Early detection can make a life-saving difference.