Subfertility

Definition/Description

Failure to conceive after a year of regular unprotected intercourse in the absence of any known reproductive pathology

Red Flag Symptoms

None provided

Guidelines on Management

Clinical Exclusions

  • Subfertility treatment is not commissioned for females with BMI >35 due to risk of pregnancy complications
  • Secondary care fertility treatment is restricted to women with BMI <30 complying with the Optimising Health Outcomes criteria.
  • Smoking increases miscarriage risk and active smoking is an exclusion criteria.

Management

  • All couples should be offered clinical investigations in primary care after 1 year of trying to conceive.
  • Secondary care referral after 2 years of subfertility for further investigations
  • Consideration for earlier referral should be given to:
    • Women over 36
    • Identified cause for subfertility or history of subfertility

Assisted Conception:

  • IVF is funded for couples meeting the CCG’s criteria 
  • There is a proforma to complete to confirm these criteria and attach supporting documents.

Referral Criteria/Information

Information to include in referral letter

  • Length of subfertility
  • Parity, past pregnancies outcomes
  • Cycle (e.g. K 5/28)
  • Past contraception – not uncommon for up to 9m amenorrhoea to follow Depo-provera® cessation, up to 6 months for COC
  • Significant past medical history and drug medical history
  • BMI (must be <35 for referral)
  • Results of the above investigations

Investigations prior to referral

  • Chlamydia screening required.
  • High Vaginal Swab only if symptomatic with PV Discharge.
  • Men should have Chlamydia and Gonococcal screening (consider self swab kit from YorSexual Health)
  • Pelvic USS (please request antral follicle count) ONLY AVAILABLE AT YORK HOSPITAL
  • Smear test (ensure up to date)
  • D1-5 FSH/LH and Estrogen level
  • D21 Progesterone (or 7d prior to predicted next period)
  • Rubella serology only if no GP record of 2 MMR vaccinations.
  • If cycle irregular: TFTs and Prolactin
  • Semen analysis – if abnormal repeat in 3m. (please ensure result available even if partner registered with another GP).

Desirable Information

Pre-conceptual advice given:

  • Regular intercourse (every 2-3 days) throughout the cycle
  • Alcohol advice - 30: encourage group therapy for weight loss (shown to increase pregnancy rates)
  • Referral for smoking cessation prior to subfertility treatment
  • Folic acid 400mcg daily or 5mg (if high risk e.g. Epileptics), ideally a multi-vitamin for pregnancy containing iron and Vitamin D. eg. Pregnacare® or Sanatogen Pronatal® OTC.
  • Rubella immunization if needed (contraception required for 4weeks post MMR)

Referral forms

Additional Resources & Reference

Patient information leaflets/ PDAs

References

Associated Policies

There are no associated policies.

Specialties

Places covered by

  • vale-of-york

Hospital Trusts

  • york-and-scarborough-teaching-hospitals
Author: Responsible GP: Dr Emma Broughton / Responsible Consultant: Miss Cath Hayden / Responsible Pharmacist: Laura Angus
Date created: 13/08/2025, 13:54
Last modified: 13/08/2025, 14:02
Date of review: ٣٠‏/٩‏/٢٠٢٤