“Mad Men” star Jon Hamm (inset) will be in town next week to undergo surgery to remove a throat polyp. The 42-year-old actor’s rep, Erica Gray, confirmed the procedure to USA Today, stating that it will be a “routine outpatient procedure.” The rumored surgery first surfaced from a source at the Governors Ball Emmys after-party who heard January Jones say the actor coughed up blood and decided to have the condition checked out, according to Life & Style. Hamm’s rep confirmed he will have a “single polyp” removed from his vocal cords during the upcoming procedure. Hamm was in the Boston area in late August, when he dined at Beacon Hill’s Tip Tap Room before heading to Martha’s Vineyard. (The Tip Tap Room put him close to MassGeneral’s Dr. Steven Zeitels, chief of the Center for Laryngeal Surgery and Voice Rehabilitation, who’s worked with Adele, John Mayer, Steven Tyler, and Julie Andrews.) Hamm, who filmed “The Town” in Boston and the recent HBO movie “Clear History” with Larry David on the North Shore, was at the Emmys on Sunday with his longtime partner Jennifer Westfeldt.