title: The forgotten coil.
abstract: OBJECTIVE
  To raise awareness of forgotten intrauterine contraceptive devices (IUDs).
  
  
  METHODS
  Case report.
  
  
  METHODS
  District general hospital in London.
  
  
  METHODS
  Two women, one with secondary infertility and one with heavy, painful periods, both unaware they had an IUD.
  
  
  METHODS
  Removal of the forgotten IUD.
  
  
  METHODS
  Return of fertility and improvement in gynecologic symptoms.
  
  
  RESULTS
  After the removal of the IUD, the first patient who had had secondary infertility conceived within 1 month. In the second patient, the symptoms of menorrhagia and dysmenorrhea improved after removal of the IUD.
  
  
  CONCLUSIONS
  Although it is rare, a forgotten IUD is a potential cause of unexplained infertility and a differential diagnosis for gynecologic symptoms.
authors.affiliation: Fertility Service, Queen Elizabeth Hospital, South London Healthcare National Health Service Trust, London, United Kingdom. dr.samuelmarcus@gmail.com
authors.forename: Samuel
authors.initials: S
authors.lastname: Marcus
authors.forename: Diana
authors.initials: D
authors.lastname: Marcus
mesh_terms: D000328:Adult; D020878:Device Removal; D004412:Dysmenorrhea / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000628:therapy; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000628:therapy; D007434:Intrauterine Devices / Q000009:adverse effects*; D014463:Ultrasonography; D014599:Uterus / Q000000981:diagnostic imaging