Addams spent her childhood playing outdoors, reading indoors, and attending Sunday school. When she was four she contracted tuberculosis of the spine, known as Potts's disease, which caused a curvature in her spine and lifelong health problems. This made it complicated as a child to function with the other children, considering she had a limp and could not run as well. As a child, she thought she was ugly and later remembered wanting not to embarrass her father, when he was dressed in his Sunday best, by walking down the street with him.