Why is mother called the saint of gutters?

Mother Teresa is often referred to as the "Saint of the Gutters" due to her lifelong dedication to serving the poorest and most marginalized people in society. She founded the Missionaries of Charity, which provided care for the sick, the dying, and the destitute, particularly in the slums of Kolkata, India. Her compassion and unwavering commitment to those living in extreme poverty earned her this title, symbolizing her belief that even the most forgotten individuals deserve love and dignity. In 2016, she was canonized as a saint by the Catholic Church, further solidifying her legacy.