"Untreated depression" refers to a condition where a person experiences ongoing feelings of sadness, hopelessness, and other negative emotions but does not receive the necessary support or treatment to address these symptoms. Full definition
I have found that typically addictive behaviors will worsen as a result of untreated depression, anxiety, or other mental health issue. (thriveworks.com)
However, the babies of moms with untreated depression can also have these same problems. (babycenter.com)
As stated above, untreated depression poses clear risks to the expectant mother and the baby. (verywellfamily.com)