**Abstract**

Liver hydatid cyst is a disease of zoonosis caused by *Echinococcus granulosus* or less frequently by *Echinococcus multilocularis* and *Echinococcus oligarthrus*. The primary carriers are canines, while human beings are secondary hosts. Early diagnosis is important for cysts not to become complicated and for the treatment not to get difficult. The most effective treatment of uncomplicated hydatid cyst is to reduce the dead space of the cavity and to discharge the fluid as much as possible. However, if the cysts get complex, there is no standard treatment management defined other than offered management options by authors. In complex conditions, the treatment is determined according to the stage of the cyst and the relation of the cyst with biliary ducts or surrounding organs. In this chapter, the treatment regimens of liver hydatid disease mainly based on interventions and surgical operations are going to take a part.

**Keywords:** conservative surgery, *Echinococcus*, hydatid cyst, PAIR, radical surgery, zoonosis
