Use of medication abortion in the formal US health care system has risen substantially from 53% of all abortions in 2020 to 63% in 2023. In the first full calendar year following the US Supreme Court’s Dobbs v. Jackson Women’s Health Organization decision, approximately 642,700 medication abortions took place within the health care system, according to new data from the Guttmacher Institute’s Monthly Abortion Provision Study.