- Report of Foreign Issuer (6-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 2011

Commission File Number: 1-32186

YM BIOSCIENCES INC.

(Translation of registrant's name into English)

Suite 400, Building 11

5045 Orbiter Drive

Mississauga, Ontario

Canada L4W 4Y4

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F o

Form 40-F x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1) o

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7) o

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

DOCUMENTS FILED

See the Exhibit Index hereto.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	YM BIOSCIENCES INC.


	By:	/s/ Leonard Vernon
		Leonard Vernon Vice President, Finance and Administration

Date: April 18, 2011

EXHIBIT INDEX

Exhibit		Description

99.1		News Release dated April 18, 2011 - YM BioSciences Reports Positive Updated Anemia Response Data for its JAK1/JAK2 Inhibitor CYT387 Disclosed at First Annual Florence Meeting on Myeloproliferative Neoplasms in Florence, Italy