Evofem Biosciences (EVFM) S-3 Shelf registration

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated March 4, 2021 relating to the financial statements of Evofem Biosciences, Inc. appearing in the Annual Report on Form 10-K of Evofem Biosciences, Inc. for the year ended December 31, 2020. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ DELOITTE & TOUCHE LLP

San Diego, CA

July 30, 2021