The woman did not recognize herself when she looked at the family photo and lost 38 kilograms.
The incident took place in the British county of Kent.
Lenna Wells, a 27-year-old mother of two, gained 103 kilograms during her first pregnancy five years ago.
Looking at a family photo in December 2018, Wells said he barely knew himself, then was embarrassed and hid from everyone.
In January last year, Wells decided to lose weight.
In about two years, the woman lost 38 kilograms and regained her former shape.