<SEC-DOCUMENT>0001752724-19-011696-index.html : 20190318
<SEC-HEADER>0001752724-19-011696.hdr.sgml : 20190318
<ACCEPTANCE-DATETIME>20190318062128
ACCESSION NUMBER:		0001752724-19-011696
CONFORMED SUBMISSION TYPE:	N-CEN
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190318
DATE AS OF CHANGE:		20190318
EFFECTIVENESS DATE:		20190318

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BlackRock Health Sciences Trust
		CENTRAL INDEX KEY:			0001314966
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		N-CEN
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21702
		FILM NUMBER:		19686730

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		(888) 825-2257

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CEN
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>INTERNAL CONTROL RPT
<SEQUENCE>2
<FILENAME>ce9-dec18_su1f4ccu.txt
<TEXT>
Document 2 - file: ce9-dec18_su1f4ccu.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>ADVISORY CONTRACTS
<SEQUENCE>3
<FILENAME>811_21702.htm
<TEXT>
Document 3 - file: 811_21702.htm

</DOCUMENT>
</SEC-DOCUMENT>