Background and objectives: Trans people around the world represent one of the most marginalized and stigmatized groups in society and who are at high risk of discrimination, violence, and abuse. In Colombia, older adults face a persistent situation of vulnerability and poverty. This situation is even more marked for older people with diverse gender identities. This study aims to understand the challenges that a group of Colombian trans women experienced in the process of aging. Methods: An exploratory qualitative research project was carried out using constructivist grounded theory. Twenty five trans-women aged 50-67 years old living in Bogotá, Colombia participated. The data were collected using semi-structured interview. Results and discussion: The findings show that older trans women faced a variety of barriers such as stigmatization, violence, and political erasure. In addition, this study identified the resources of trans women in overcoming their many challenges. These included personal strengths, activism, and mobilization.