Follicle tracking

Also written as monitoring scans

Written by Zayn Miah & R KhanomLast updated 17 September 2026Not clinically reviewed

A series of ultrasound scans and blood tests during ovarian stimulation used to monitor follicle growth and hormone levels.

In plain English

It's the regular scan and blood test appointments during stimulation, checking how your follicles are growing.

Why it matters

The results decide whether your medication dose stays the same, changes, or when your trigger shot is timed.

Related terms

Guides that cover this

Written by patients, not clinicians. This page has not yet been reviewed by a named fertility professional, so it explains published guidance and points you to the original source instead of giving medical advice. It is not medical advice. Decisions about your treatment belong with your own clinic. Read our editorial policy and corrections policy.