EXHIBIT 23.2


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 and related Prospectus of Genzyme Corporation for the registration
of 235,870 shares of Genzyme Biosurgery Division common stock of our report
dated January 31, 2001, with respect to the financial statements of Focal,
Inc. included in its Annual Report (Form 10-K) for the year ended December
31, 2000 filed with the Securities and Exchange Commission.

                                                         /s/ Ernst & Young LLP

Boston, Massachusetts
July 25, 2001