可以買尿試紙(Urine Test Strips)，自己測

https://www.amazon.com/Parameters-Testing-Protein-Leukocytes-Nitrite/dp/B0B6GXN7VP

https://www.amazon.com/s?k=urinary+tract+infection+strip&hvadid=580633390257&hvdev=c&hvlocphy=9025857&hvnetw=g&hvqmt=e&hvrand=15630888009566518274&hvtargid=kwd-483638115114&hydadcr=21886_13323212&tag=googhydr-20&ref=pd_sl_49i2td7ay2_e