One of the numerous causes of abdominal pain, Fitz-Hugh-Curtis syndrome (FHC) can occur in the pediatrician population. Its rapid diagnosis and treatment can avoid long-term complications, such as extra-uterine pregnancy and infertility. We report a case of FHC in a 16-year-old female caused by Chlamydia trachomatis. We discuss the diagnosis, which can be easier with noninvasive methods including CT and laboratory tests.