Depends on the cause of this bubbly urine - out of control diabetes, dehydration, recent kidney issues, or urinary tract infection. Also, there's a difference between bubbly and foamy. Since you haven't given us much to go by, I suggest you go see your doctor or go to your local hospital for an evaluation.
Bubbly urine is one of symptoms of Diabetes2 with its patient currently with high glucose reading.
If I were you I 'd test my glucose reading. Good luck.