[3][4] In 1945, she won a scholarship from then President Arévalo to study art in Mexico, at the Escuela Nacional de Pintura, Escultura y Grabado "La Esmeralda".

[5][6] At the school, she studied with Carlos Orozco Romero, Jesús Guerrero Galván, Alfredo Zalce, Federico Cantú and Manuel Rodríguez Lozano but quickly became a favorite student of Diego Rivera, who she called her best teacher.

In 2006, after living there for more than forty years, they opened part of the ground floor to house the Galería de la Casa Colorada.

[8] Her early artistic, social and political life was strongly tied with that of Rivera and Kahlo, and she became a militant supporter of the Mexican Communist Party.

[3] Lazo's art career began soon after she arrived to La Esmeralda, when Diego Rivera hired her as an assistant.

Her first collaboration with him was in 1947, on the mural called Sueño de una tarde dominical en la Alameda Central for the Hotel del Prado.

[6] Before she married, she created a mural at the Escuela Rural de Temixco with the aim of getting the Communist Party recognized in the state of Morelos.

The first and larger was done at the Museo Nacional de Antropología in Mexico City in a reproduced Mayan structure created for the work.

However, in 1997, she worked with her husband to design and paint a 2.7 by 7 meter portable mural called Realidad y sueno en el mundo maya.

[11] Lazo's works on canvas are less known but her first prize-winning piece is titled Por los caminos de la libertad (1944).

[4] Her work has been exhibited in Germany, Austria, France, the United States, Mexico, Guatemala, South Korea and other countries.

[13] The Mexican embassy in Guatemala paid tribute to her with an exhibition of panels of her work depicting the murals of Bonampak at the Centro Cultural Luis Cardoza y Aragón in 2010.

She pointed out that major protagonists with the movement, such as Frida Kahlo and Diego Rivera, still had international name recognition and exhibits of their work.

[18] Lazo believed muralism will make a comeback because of Mexico's long history with this art form and its association with reflection upon social and political issues.