After learning his cancer diagnosis has become "more complicated," Portland City Commissioner Nick Fish says he'll be spending the rest of December focusing on his health.

Fish shared this statement with the Mercury Tuesday morning:

Last week, I learned from my team of OHSU doctors that my illness has become more complicated. I am also managing the cumulative effects of chemotherapy. Through the rest of this month, I plan to take time to focus on my health and my family. I will continue to work as I am able and expect to have more to share in the new year.

Fish was first diagnosed with stomach cancer in August 2017, and has been undergoing regular chemotherapy treatments since. His chemo treatments have caused him to miss several council sessions, but has not slowed his engagement in council issues.

The illness also did not stop Fish from running—and winning—a reelection campaign in 2018.

In his statement announcing his initial diagnosis in 2017, Fish said: "This is the biggest challenge I have ever faced. I intend to fight this disease with every fiber of my body."