My mother..61 yr..multiple gall bladder stones..max 11 mm..surgery recommended..but she has no pain..is surgery must?..what precautions if don't opt it

Reasonable: Recommendation for surgery is reasonable. You do not want the condition to turn into emergency when stone obstructs bile duct. There are many variables. Trust your doctor.

Depends: Gallstones are the result of a disease process and only resolved by the removal of the gallbladder. If pain is not a symptom, there could be other vague symptoms present. Also, why wait for a severe attack and possible related complications. While surgery is not immune to complication, it is very safe. A sincere discussion with a surgeon will help you decide.