In a Massachusetts murder trial, a crucial question arises: Did postpartum psychosis lead a mother to kill her three children? On Monday, the jury in Lindsay Clancy’s trial, a former labor and delivery nurse at Massachusetts General Hospital, listened to opening statements. Both parties agree on her actions of strangling her children aged 5 and under in 2023; however, they differ on her criminal responsibility.
Clancy, along with her ex-husband Patrick Clancy, has initiated lawsuits against her medical providers. They accuse them of failing to accurately diagnose and treat her condition.
Understanding Postpartum Psychosis
Postpartum psychosis is a rare but dangerous condition, estimated to impact just 1 to 2 per 1,000 women after childbirth. The Cleveland Clinic identifies it as a mental health crisis affecting reality perception. Although any new mother can experience it, those with specific mental health conditions face higher risks. According to a 2023 journal article from researchers at the Medical University of Lublin, Poland, about half of postpartum psychosis cases involve a history of psychiatric issues. Bipolar affective disorder, which involves extreme mood fluctuations, is the most prevalent risk factor.
EDITOR’S NOTE: This article discusses suicide. For help, contact the national suicide and crisis lifeline in the U.S. by calling or texting 988.
Most individuals with postpartum psychosis do not harm their children, but severe cases can lead mothers to attempt this or to harm themselves. Immediate assistance is crucial if you or someone you know exhibits signs of postpartum psychosis.
Symptoms of Postpartum Psychosis
The condition typically manifests within several days post-birth, but it can emerge up to six weeks afterward. Symptoms include hallucinations, delusions, and paranoia. Behavioral changes such as mania, depression, disorganized thinking or behavior, insomnia, irritability, and agitation can also occur.
Distinction from Other Postpartum Conditions
Postpartum depression, though potentially dangerous, is more common. A 2024 study noted that U.S. rates reached 19% in 2021. In contrast, baby blues affect around 80% of new mothers shortly after childbirth, presenting with mild crying and sadness, manageable within daily life without harming the care of mothers or babies.
If sadness persists beyond two weeks, it may indicate postpartum depression, with symptoms like despair, anxiety, guilt, worthlessness, low energy, reduced concentration and appetite. These mothers may constantly worry about their babies, struggle with sleep or self-care, and have thoughts of self-harm.
Postpartum psychosis stands as the most severe postpartum psychiatric condition.
Treatment Options
Women suffering from postpartum psychosis require inpatient mental health care, potentially involving involuntary hospitalization. Treatment options include medication or electroconvulsive therapy, where small electric currents induce a brief seizure under anesthesia.
Experts emphasize the importance of early intervention for improving patient outcomes.
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education and the Robert Wood Johnson Foundation. The AP holds full responsibility for the content.

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