Hello .. My Wife Was Feeling Very Light Pain Around

hello .. my wife was feeling very light pain around her bellybutton when she stands too much or moves too much .. so we made a urine analysis .. and this is her urine sample ..

Colour: Yellow
Aspect: S.Turbid
Reaction: Acidic
Specific Gravity: 1020

Albumin: Absent
Glucose: Absent
Keton bodies: Absent
bilirubin: Absent
Nitirit: Negative
Urobilinogen: N.Trace

PUS: 3-4
RBS: 2-3
Epithelial Cells: ++
Crystals: Ca- Oxalate ( ++ )
Amorphous Materials: Absent
Casts: Absent
Parasites: Absent
others: Absent


can you please tell me what does this mean ?