Adnexal mass causes
Causes by Organ System
| Cardiovascular | No underlying causes |
| Chemical / poisoning | No underlying causes |
| Dermatologic | No underlying causes |
| Drug Side Effect | No underlying causes |
| Ear Nose Throat | No underlying causes |
| Endocrine | No underlying causes |
| Environmental | No underlying causes |
| Gastroenterologic | No underlying causes |
| Genetic | Hematocolpos |
| Hematologic | No underlying causes |
| Iatrogenic | No underlying causes |
| Infectious Disease | Pyometra |
| Musculoskeletal / Ortho | No underlying causes |
| Neurologic | No underlying causes |
| Nutritional / Metabolic | No underlying causes |
| Obstetric | Functional Ovarian Cysts, Ectopic pregnancy, Theca lutein cysts, Corpus luteum of pregnancy |
| Oncologic | Benign Uterine leiomyoma, Endometrial polyp, Uterine adenomyoma or diffuse adenomyosis, Hematometra. Malignant Uterine sarcoma, Uterine carcinosarcoma, Endometrial carcinoma, Gestational trophoblastic neoplasia, Metastatic disease (typically from another reproductive tract primary). |
| Opthalmologic | No underlying causes |
| Overdose / Toxicity | No underlying causes |
| Psychiatric | No underlying causes |
| Pulmonary | No underlying causes |
| Renal / Electrolyte | No underlying causes |
| Rheum / Immune / Allergy | No underlying causes |
| Sexual | No underlying causes |
| Trauma | No underlying causes |
| Urologic | No underlying causes |
| Miscellaneous | No underlying causes |