What happend to riche's mom on family matters?

On "Family Matters," Richie’s mom, who is named Judy Winslow, disappears from the show after the fourth season. She was portrayed by actress Jaimee Foxworth, but her character was written out without explanation, leading to speculation among fans. The show's focus shifted more towards other characters, particularly Steve Urkel, and Judy's absence was never addressed within the storyline. Later, Foxworth's departure was attributed to creative decisions and her struggles with the transition to adulthood in the entertainment industry.