No additional adverse event was reported; HCP called to report a patient received a fourth dose of GARDASIL 9 after completing a 3-dose-series in 2022 ( exact date unknown). No side effects or symptoms reported. No additional information reported. No additional AE/ No PQC.; This spontaneous report was received from physician assistant and refers to a 26-year-old female. The patient’s medical history was not reported. The patient’s concurrent conditions were not reported. Concomitant therapies were not reported. On 23-JAN-2025, the patient was vaccinated withfourth dose of hpv rl1 6 11 16 18 31 33 45 52 58 vlp vaccine (yeast) (GARDASIL 9) injection, 0.5ml, lot #Y012864, expiration date: 29-MAY-2026, administered for prophylaxis (strength, and route of administration were not provided) after completing third dose series in unknown date in 2022 (Extra dose administered). No additional adverse event was provided.