After laparoscopic gallbladder removal patients are randomized to have a suction drain positioned in the subhepatic space or to have a sham drain in the subhepatic space. The primary outcome measure will be the presence of subhepatic fluid collection at ultrasonographic examination on the first postoperative day. Secondary outcome measures will be postoperative abdominal and shoulder tip pain, use of analgesics, nausea, vomiting and morbidity