title: Menstrual tension-type headache: evidence for its existence.
abstract: OBJECTIVE
  To determine whether menstrual tension-type headache is a real disorder.
  
  
  BACKGROUND
  An appendix was included in the second edition of the International Classification of Headache Disorders by the International Headache Society. Diagnostic criteria are proposed in this appendix for 2 types of menstrual migraine: pure menstrual migraine without aura and menstrually related migraine without aura. References to menstrual tension-type headache do not appear in this classification.
  
  
  METHODS
  In a neurological outpatient clinic 165 patients were identified in whom headache was related to menstruation and the criteria of the International Classification of Headache Disorders for menstrual migraine adapted to menstrual tension-type headache were applied.
  
  
  RESULTS
  Twenty-one patients met the criteria of menstrual tension-type headache, 6 for pure menstrual tension-type headache, and 15 for menstrually related tension-type headache.
  
  
  CONCLUSIONS
  Menstrual tension-type headache is a real condition that should be recognized in the International Classification of Headache Disorders.
authors.affiliation: Hospital Torrecardenas--Neurology, Almeria, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Arjona
authors.forename: Jose
authors.initials: J
authors.lastname: Rubi-Callejon
authors.forename: Pedro
authors.initials: P
authors.lastname: Guardado-Santervas
authors.forename: Pedro
authors.initials: P
authors.lastname: Serrano-Castro
authors.forename: Jesus
authors.initials: J
authors.lastname: Olivares
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008598:Menstruation / Q000502:physiology; D008599:Menstruation Disturbances / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology; D008875:Middle Aged; D012189:Retrospective Studies; D018781:Tension-Type Headache / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology