The 25-year-old suffered a hamstring problem during Everton's draw with West Brom on Monday but the club have confirmed the defender has started his recovery
Coleman was substituted in the closing stages of Monday's 1-1 draw at The Hawthorns, with manager Roberto Martinez subsequently confirming the 25-year-old had felt pain in his hamstring.
A further update from Everton's official website on Wednesday revealed the extent of Coleman's injury, but did not put a timescale on the length of his absence.
"Seamus Coleman has suffered a 'minor soft tissue injury'," read the statement.
"The defender was forced off during Everton’s 1-1 draw with West Bromwich Albion on Monday night.
"He has been closely monitored by Blues medical staff since then and has already begun his recovery."