Aerococcus urinae is a Gram-positive, catalase-negative coccus, rarely responsible for urinary tract infections and seldom described for musculoskeletal infections like spondylodiscitis. An 86-year-old man presented to our hospital for groin pain without fever. Pelvic CT-guided biopsy revealed an A. urinae pubic symphysis osteomyelitis. He received a treatment by amoxicillin per os for six weeks, and did not need any surgery. An eight -month- follow-up showed a favorable evolution. Pubic symphysis infection can be induced by a wide variety of pathogens, and may have very different clinical presentations. Some authors recommend systematic surgery, but in case of susceptible pathogen associated with a low level of joint destruction, medical treatment alone should be sufficient to cure and make surgery unnecessary.