When a woman is ovulating normally, an egg is released from the ovary during each menstrual cycle.
Eggs develop inside fluid-filled sacs, called follicles. Just prior to ovulation, follicles reach a size of around 20mm and are visible on a transvaginal ultrasound scan. Ultrasound scanning can be used quite effectively to monitor follicle growth and predict ovulation.
How is follicle tracking carried out?
As practised in most fertility centres, Merrion Fertility Clinic uses vaginal ultrasound scanning to monitor ovarian follicles. Most women find vaginal scanning quite comfortable.
When is follicle tracking used?
Follicle tracking allows us to monitor the cycle and follicle development so that intercourse can be timed around ovulation. Follicle tracking and TSI (timed sexual intercourse) is only used when:
- ovaries are producing follicles
- sperm tests are normal
- fallopian tubes and pelvis are also normal
Follicle tracking may be useful for women whose cycles are very irregular and unpredictable. However, it is not suitable for most infertility pathologies.
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Please note that you need a GP or Consultant referral to book a Semen Analysis appointment, but this is not a requirement to book a Doctor Consult.