I gave a urine sample they found a high amount of white cells in the urine what does it mean?

Or inflammation . If infection not found there are inflammatory conditions that can cause isolated leukocytes on a urine culture. These don't usually need and antibiotic but a urine culture and exam is necessary to decide.
Possible infection. White blood cells are the cells that fight infections. The presence of white blood cells in the urine typically indicate an infection. This could be from a bladder infection, kidney infection, or even a vaginal infection (if the urine wasn't collected properly.) it is important to continue under your doctor's care until the urine is completely back to normal with no further white blood cells.