A 40-year-old woman was reported missing from Rogers Park on the North Side.
Rebecca Mason last contacted her family on April 24 from the 1500 block of West Estes Avenue, according to an alert from Chicago police.
She may be in need of medical attention, police said.
Mason is 5-foot-2, 105 pounds with brown eyes and brown hair that she recently shaved, police said. She has a full back tattoo. It is not known what she was last seen wearing.
Anyone with information is asked to call Area North detectives at 312-744-8266.