"He has been assessed by a cosmetic surgeon and necessary repairs have been done," Debashis Chowdhury, the BCB's senior physician, said in a statement.
"The affected finger will have to be immobilized for at least a week before further assessment is made which means he is out of the first test in Chittagong."
Shakib replaced Mushfiqur Rahim as test captain in December after previously leading the team for nine tests from 2009 to 2011.
The second match of the two-test against Sri Lanka starts on Feb. 8 in Dhaka.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
(Reporting by Simon Jennings in Bengaluru, editing by Pritha Sarkar)
