Angelina Jolie is speaking out against health inequalities in the United States that harm people of color — including her own children.

In an opinion piece for the American Journal of Nursing, the actor commented on recent technology that makes detecting bruises on darker skin tones easier, particularly in cases of domestic violence. For centuries, medical research, imagery, and training has focused on white skin and bodies, leaving significantly less information around treating those with darker skintones.

Sharing her experiences while raising six children, many of whom are different ethnicities, Jolie noted how medical professionals “often miss injuries depending on race and ethnicity.”

“As the mother of children of multiple races, I have seen my children of color be misdiagnosed, at times in ways that endangered their health,” Jolie wrote.

Jolie has three biological children with her ex-husband Brad Pitt, as well as three adopted children. Their eldest child, Maddox, was adopted from Cambodia, whereas their daughter Zahara was born in Ethiopia, and their son Pax was born in Vietnam.

Jolie noted that even though her family has “access to high-quality medical care, simple diagnoses are missed because of race and continued prioritization of white skin in medicine.”

“Reflecting personally, when my daughter Zahara, who is from Ethiopia, was hospitalized for a medical procedure, the nurse told me to call her ‘if she turns pink near her incisions,’” Jolie recalled. “I stood looking blankly at her, not sure she understood what was wrong with what she had said. When she left the room, I had a talk with my daughter, both of us knowing that we would have to look for signs of infection based on our own knowledge, not what the nurse had said, despite her undoubted good intentions.”

She concluded: “From technology to improving diversity and representation in medical research and training, it is past time to embrace new solutions."