Liver polycystic foci and liver cysts 5mmx6mm which is serious mainly depends on whether there is a combination of symptoms, liver polycystic foci of the lesions of a wider range of involvement, compared with the more serious. Hepatic multilocular cystic foci are divided into congenital and acquired, congenital may be polycystic liver, often combined with polycystic kidneys, the cause is unknown; acquired mostly due to trauma, inflammation, etc., most of them have no clinical symptoms, found in the physical examination, such as the symptoms should be promptly seek medical attention. Liver cysts 5mmx6mm generally do not cause discomfort, but if there is an infection, pain will occur, and should be puncture and fluid extraction, anti-infection treatment or cystectomy; if the liver cysts are asymptomatic, it is generally only necessary to observe regularly, without special treatment. To summarize, no matter which situation, if symptoms occur, you should seek medical treatment in time, and if there are no symptoms, regular observation is enough.