Short answer

What is HIFU treatment for uterine fibroids?

HIFU (high-intensity focused ultrasound), also referred to as focused ultrasound ablation, concentrates ultrasound waves from outside the body onto a single focal point inside a fibroid, inactivating the tissue with heat — without any incision. The fibroid is not removed; the treated tissue shrinks over the following months. The method is not suitable for every fibroid: eligibility is determined by an MRI-based physician assessment.

This page is written for patients researching focused ultrasound as a treatment option. Our aim is to describe the method as it is: what it can do, what it cannot, and when it is worth considering.

How does HIFU work?

Much like a magnifying glass concentrating sunlight, a HIFU system concentrates ultrasound energy at a single focus. At that focal point the tissue temperature rises within seconds and the targeted volume undergoes ablation — controlled inactivation of tissue. Energy passing through other tissues on the way stays below the level that would cause harm.

The systems described on this site are ultrasound-guided (USgHIFU): the physician follows the target on real-time ultrasound imaging throughout the procedure. MR-guided focused ultrasound (MRgFUS), which some centres use, applies the same principle under MRI guidance; the two approaches are evaluated separately in the literature.

Who may be a candidate?

HIFU can be considered for patients with symptomatic fibroids who are looking for an incision-free option; eligibility depends on fibroid type, size, location and MRI tissue characteristics. We cover this in detail on a dedicated page.

Am I a candidate for HIFU? See the assessment factors

How does the treatment process work?

The HIFU pathway, step by step
  1. 01

    Assessment

    A physician reviews your MRI and clinical history; whether HIFU is a realistic option for you becomes clear at this stage.

  2. 02

    Planning

    For suitable patients, a treatment plan is created: target volume, energy and safety margins.

  3. 03

    Treatment day

    The procedure is usually performed under sedation with pain control; duration depends on fibroid size and number.

  4. 04

    Discharge

    Hospital stay after HIFU is generally short compared with surgery; most patients return to daily life quickly.

  5. 05

    Follow-up

    Shrinkage and symptom change are monitored with follow-up imaging on a schedule set by your physician.

What are the potential advantages?

Evidence
In comparative analyses, HIFU has been associated with shorter hospital stay and lower procedural morbidity than myomectomy.

Outcomes vary with patient selection and centre experience.

Source: 2021 · Frontiers in Oncology2022 · International Journal of Hyperthermia

What are its limitations and risks?

Like any treatment, HIFU has limits: not every fibroid type can be treated, ablation may be incomplete, and a proportion of patients need further treatment over time. We address the risks and limitations honestly, with sources, on a dedicated page.

Evidence
The likelihood of retreatment after HIFU is higher than after myomectomy on average; however, it is strongly linked to patient selection and the ablation ratio achieved (NPV) — in well-selected patients, long-term retreatment rates are markedly lower.

This should always be part of the pre-treatment discussion with your physician.

Source: 2024 · International Journal of Hyperthermia2021 · Frontiers in Oncology

Read about HIFU risks and limitations

What does the scientific evidence say?

Evidence
In a European USgHIFU series, mean fibroid volume decreased by about 33% at 6 weeks, 51% at 6 months and 59% at 12 months.

Shrinkage varies with fibroid characteristics and the extent of ablation.

Source: 2025 · European Radiology2022 · International Journal of Hyperthermia

Evidence
NICE considers the short-term efficacy evidence for focused ultrasound in fibroids adequate, notes that further treatment may be needed in a proportion of patients, and describes the effect on subsequent pregnancy as uncertain.

The NICE assessment concerns MR-guided systems; it is cited here as the closest guideline framework.

Source: 2011 · NICE (İngiltere Ulusal Sağlık ve Bakım Mükem2024 · International Journal of Hyperthermia

The first step

Whether HIFU is an option for you can only be determined through an individual, imaging-based assessment. If you already have an MRI, the review is faster; if not, it can be planned as part of the process.

The assessment does not replace a medical decision; it gathers the information a physician needs for a preliminary review.

Request a specialist HIFU assessment