"I'm going to be cautious with him," Ausmus said.
Ausmus added that even if Martinez returns to action for Detroit before the All-Star break, that doesn't necessarily mean he'll be a go for the All-Star Game next Tuesday.
"Even if he is able to play for us prior to the break, it might be in his body's best interest to not partake in the baseball activities of the All-Star Game," Ausmus said.
According to Ausmus, the possibility of Martinez going on the disabled list isn't something that's being considered, largely because of the impending break.
The manager said earlier this week that there will be discussions between himself, Martinez, general manager Dave Dombrowski and trainer Kevin Rand before a decision is reached.
"I think Victor understands it's more important to play the season than play the All-Star Game," Ausmus said.
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. Matt Slovin is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.