Kayline Montero DeCastro spoke to her aunt Friday about going to the hospital to treat both mental and physical health issues.
Then she disappeared.
On Tuesday, Miami Beach police asked for help in finding the 34-year-old.
Montero DeCastro — 5-foot-3, with auburn hair and brown eyes — was last seen near 16th Street and Meridian Avenue.
She was last seen in a green shirt, blue jeans, and white and blue Nike slides.
Anyone with information is asked to call Miami Beach police at 305-673-7900.