One + white blood cell in prostate, do I need antibiotics?

One + prostate leukocyte is generally not recommended for antibiotic injections.
One + prostate leukocyte suggests that you may currently have prostatitis, but the condition is not particularly severe, so anti-inflammatory antibiotics via subcutaneous intramuscular injections are not recommended, and oral antibiotics may be an option.
There are many types of antibiotics that can be used to treat prostatitis, including levofloxacin, ofloxacin, cefixime, cefaclor, azithromycin, ciprofloxacin, doxycycline and so on, depending on the type of the causative organisms as well as the degree of sensitivity to the drug to choose, the mild cases can be orally, and the severe cases can be injected or intravenous drip treatment.
If you are diagnosed with prostatitis through urinalysis and prostate fluid examination, you should follow the doctor’s instructions as soon as possible to avoid aggravating the condition and causing other complications.