Trudnoća traje oko 280 dana, odnosno 40 tjedana. Tih 9 mjeseci vrlo je značajno u ženinu životu, doživljava niz fizioloških i psiholoških promjena koje su nužne za razvoj normalne trudnoće. Prilagodbama je pogođen i mokraćni sustav s brojnim strukturnim i funkcionalnim promjenama koje su pretežito posljedica hormonalnih, no i raznih drugih učinaka. Ovaj pregledni rad opisuje urološke bolesti kojima mogu biti pogođene trudnice, s posebnim naglaskom na urinarne infekcije, urolitijazu te tumore bubrega u trudnoći i njihovo liječenje. Te skupine bolesti vrlo su specifične i važne za opstetričare. Tako npr. asimptomatsku bakteriuriju jedino u trudnica moramo liječiti. Akutni je pijelonefritis najčešća bubrežna komplikacija trudnoće i najčešći neopstetrički uzrok hospitalizacije u trudnica. Također, kod urolitijaze u trudnoći u potpunosti je drugačiji prvi izbor dijagnostike i liječenja nego u općoj populaciji. Urološke bolesti u trudnoći nisu rijetkost i povezane su s brojnim komplikacijama koje utječu na sam ishod trudnoće, zdravlje majke, ali i brojnim komplikacijama kod djeteta. Urološka stanja u trudnoći predstavljaju veliki dijagnostički i terapijski izazov. Uz brzu procjenu i pravilno liječenje, prognoza je dobra. Kad god je trudnoća u pitanju postoji opasnost od nanošenja štete plodu raznim intervencijama, no napretkom medicine ta se opasnost svodi na najmanju razinu. U ovom je radu ta problematika obrađena na temelju različitih izvora, donoseći različite stavove i razmišljanja brojnih autora, opisujući najznačajnija otkrića i polemike vezane uz ovu temu., The pregnancy lasts approximately 280 days, or 40 weeks. Since women experience a number of physiological and psychological changes crucial for the development of a regular pregnancy, these 9 months are very significant in their lives. Some of the adjustments refer to the urinary tract, with numerous structural and functional changes that are mainly due to hormonal but also various other effects. This thesis depicts urological diseases that may affect pregnant women, with particular emphasis on urinary infections, urolithiasis, and kidney tumors in pregnancy and their treatment. These disease groups are very specific and important for obstetricians. For example, asymptomatic bacteriura should only be treated in pregnant women. Acute pyelonephritis is the most frequent renal complication in pregnancy and the most common non-obstetric cause of hospitalization of pregnant women. Furthermore, urolithiasis in pregnancy requires a completely different first choice of diagnosis and treatment than in the general population. Urological diseases in pregnancy are not uncommon and are associated with numerous difficulties that modify the outcome of pregnancy, maternal health, but also numerous impairments in child. Urological conditions in pregnancy are a major diagnostic and therapeutic challenge. When conducting a quick assessment and a proper treatment, the prognosis looks promising. Whenever pregnancy is jeopardized, there is a risk of harming the fetus through various interventions. Due to the advancement of medicine, however, this risk is minimized. In this study, these issues are addressed on the basis of different sources, by bringing diverse views and opinions of many authors and by describing the most significant findings and controversies related to this topic.