Harvin underwent major surgery to help solve a hip problem on August 1 and this is now the second time that the player has experienced swelling in the area since the operation.
"We don't see any big issue, structurally," said Seahawks coach Pete Carroll.
"It's just [the way his hip is] responding from the load of the game. He had 16 active plays in there, so it wasn't very much. He's just sore. So we don't want to push it. It's not worth it."
Seattle find themselves top of the NFC Western Division, with a record of 10-1.