Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the Hologic, Inc. Amended and Restated 2008 Equity Incentive Plan, of our reports dated November 21, 2017, with respect to the consolidated financial statements of Hologic, Inc. and the effectiveness of internal control over financial reporting of Hologic, Inc. included in its Annual Report (Form 10-K) for the year ended September 30, 2017, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
May 1, 2018
Boston, Massachusetts