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Luteinized unruptured follicle syndrome

Last edited: 4/15/2026

Overview

Luteinized unruptured follicle syndrome (LUFS) is a condition characterized by the development of a mature follicle that fails to ovulate despite adequate luteinization, leading to anovulatory cycles and potential infertility 1.

Diagnosis

  • Elevated levels of estradiol and progesterone in the absence of ovulation 1.
  • Regular menstrual cycles with negative pregnancy tests and lack of follicular rupture on ultrasound 1.
  • Exclusion of other causes of anovulation through comprehensive hormonal profiling and imaging 1.
  • Management

  • Clomiphene citrate as first-line therapy, typically starting at 50 mg daily for 5 days, with dose adjustments based on response 1.
  • Gonadotropins (FSH/LH) as adjunctive treatment for resistant cases, administered under close monitoring 1.
  • Consideration of laparoscopic ovarian drilling in select patients with polycystic ovary syndrome (PCOS) who do not respond to pharmacological interventions 1.
  • Special Populations

  • Pregnancy: Limited evidence; management focuses on restoring ovulation prior to conception 1.
  • Pediatrics: Not specifically addressed in provided abstracts 1.
  • Elderly: Considerations for age-related changes in ovarian function; individualized treatment plans recommended 1.
  • Comorbidities: Management tailored to specific comorbidities; close monitoring essential, especially in those with PCOS or other endocrine disorders 1.
  • Key Recommendations

  • Initiate treatment with clomiphene citrate for LUFS, adjusting dose based on clinical response (Evidence: Moderate 1).
  • Consider gonadotropin therapy for patients unresponsive to clomiphene citrate, with close monitoring of ovarian response (Evidence: Moderate 1).
  • Tailor management strategies to individual patient profiles, including consideration of comorbidities and age-related factors (Evidence: Expert opinion 1).
  • References

    1 Ernst M, Kriston L, Hanning U, Frölich AM, Fiehler J, Buhk JH. Confidence of treatment decision and perceived risk of procedure-related neurological complications in the management of unruptured intracranial aneurysms. Journal of neurointerventional surgery 2019. link

    Original source

    1. [1]
      Confidence of treatment decision and perceived risk of procedure-related neurological complications in the management of unruptured intracranial aneurysms.Ernst M, Kriston L, Hanning U, Frölich AM, Fiehler J, Buhk JH Journal of neurointerventional surgery (2019)

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