### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
i am 20 years and 6 weeks pregnant with my second baby i had a operation when i was 14 for PUJ on the left kidney it was 2 blood vessels crossed over after i had key hole surgery i was fine for about a year then the pain slowley came back and when i fell pregnant with my first baby i had pain the whole way through pregnancy then when i had him the pain eased of but i would get the pain once a month i seen the specialist at the hospital and they said they wasnt worrid about it because the pain wasnt as reacuring as befor so it couldnt be bad i was due to see my doctor about 2 months from now but now i have fell pregnant again im about 6 weeks and i am having the pain every day again do you think i could have ther same thing again (PUJ) and if i have will i have to put up withe the paion the whole way through pregnancy and if so will they opperait again after ?

### output:

Hi, Vessels crossing the junction is one of the frequent causes of POJO. If treated properly, is unlikely to recur. Pregnancy itself is a strain condition to the ureters. The gravid uterus compresses the pelvic inlet and the ureters. This can lead to urinary retention. This requires no active treatment except changing the position sometimes. Try lying in left lateral decubitus position. If you are very afraid, you can get a USG of the kidneys. But don't be afraid if there is HY Chat Doctor.  (Because the size of kidneys will not become completely normal even after surgery). After your delivery, you can get a DTPA genogram to confirm unobstructed 