This study is designed to observe the presence or absence of intrauterine adhesions at 6 weeks after treatment with the Sonata® System through hysteroscopic evaluation by third party readers.

Patients who agree to participate in this observational trial will have selected fibroid treatment with the Sonata System. Research participants will undergo hysteroscopy at 6 weeks following treatment to evaluate presence or absence of intrauterine adhesions.

Research participants will be asked to complete a quality of life questionnaire prior to and 6 weeks following treatment. Research participants will also complete a satisfaction survey and a diary that tracks their return to normal daily activities.

Inclusion Criteria:

• Have selected Sonata for treatment of fibroids in the presence of heavy menstrual bleeding
• Presence of at least one submucous myoma (type 1, type 2) or transmural fibroid (type 2-5)
• Willing and able to read, understand, and sign the informed consent form and to adhere to all study follow-up requirements

Exclusion Criteria:

• Preexisting adhesions within the endometrial cavity as indicated by an ESH score ≥ I as determined by the investigator
• One or more Type 0 fibroids and/or endometrial polyps of any size
• Any reason for which, in the opinion of the Investigator, the individual study patient is not appropriate or suitable for participation in this study

Individuals who desire treatment of intrauterine fibroids with RF ablation via the Sonata System.

This observational study is intended to view the group as an entirety, individual participant data will be analyzed for adhesions but will not be shared independently.

6 weeks