Although it is very rare, ovarian cysts may develop in female babies in the womb and are usually not a problem and may shrink or even disappear on their own. 

 Although it is very rare, ovarian cysts may develop in female babies in the womb and are usually not a problem and may shrink or even disappear on their own. If it continues to grow and occupies most of the abdomen and pressure on other organs develops, it may need to be emptied while in the womb. 

 It is not necessary to make an immediate intervention decision with a single examination. At the end of the examination and follow-up by a perinatology specialist, if necessary, it can be evacuated with a not very difficult procedure and usually does not repeat.