Former nurse Lindsay Clancy, 36, is on trial in Plymouth, Massachusetts, after being charged with killing her three young children in January 2023.
Clancy does not contest that she killed her five-year-old, three-year-old, and eight-month-old children before attempting to end her own life on January 24, 2023. However, her defense team told the court in Plymouth, a coastal town south of Boston, that she was suffering from post-partum psychosis at the time of the events.
The high-profile trial has drawn international attention to post-partum psychosis, a severe and little-known psychiatric disorder distinct from post-partum depression.
While post-partum depression receives widespread public discussion, medical experts emphasize that post-partum psychosis is a separate condition. It affects between one and two women per 1,000 births, translating to roughly 640 to 1,300 women each year in France.
Symptoms and early signs of post-partum psychosis
The disorder is characterized by a complete loss of contact with reality, accompanied by severe delusions and hallucinations. Dr Lucie Joly, a psychiatrist at Saint-Antoine Hospital in Paris and a lecturer at Sorbonne University, explained that the illness presents with severe insomnia, agitation, extreme anxiety, irritability, and rapid mood swings. Saint-Antoine is one of the main public teaching hospitals in the French capital.
Dr Joly noted that the condition typically emerges in the days immediately following childbirth, reaching a peak around the tenth day. Without clinical intervention, an episode can persist for several weeks or longer. She added that early symptoms are often missed because family members attribute them to ordinary exhaustion following labor, even though the illness can escalate rapidly.
Delusions associated with the condition vary significantly between patients. Elise Marcende, president of Maman Blues, a French support association for mothers facing post-partum mental health struggles, stated that one mother described viewing her infant as a Messiah and the savior of humanity during an episode. Conversely, Marcende said other mothers perceive their babies as hostile strangers intending to cause them harm.
Medical emergencies and treatment options
Although the risk of infanticide and suicide remains fortunately rare, Dr Joly stressed that it represents a genuine danger to both mother and child. For this reason, she classified post-partum psychosis as an immediate psychiatric emergency requiring urgent medical evaluation.
Dr Joly stated that suicide risk must be systematically assessed in every case. Most patients require psychiatric hospitalization, which may be conducted without the patient's consent if their clinical state warrants it. She noted that medical teams aim to reunite the mother and baby in a specialized Mother-Baby Unit as soon as clinical conditions permit, allowing treatment to proceed while protecting the maternal bond.
Family members play a vital role in recognizing symptoms early, guiding patients toward medical care, and managing domestic responsibilities. Marcende noted that while some families provide strong support to the co-parent and care for the newborn, others fail to understand the illness or resist hospitalization due to the persistent social stigma surrounding psychiatric care.
Risk factors and psychological trauma
Women suffering from post-partum psychosis often oscillate between extreme delusion and moments of clarity. Marcende described the experience as intensely traumatic, noting that while some mothers remember their hallucinations, others are primarily traumatized by their stay in isolation units where they were placed due to self-harm risks. She recalled one woman who contacted Maman Blues after suffering post-partum psychosis following each of her three pregnancies.
Vulnerability to the disorder varies across individuals. Dr Joly explained that the risk is significantly higher for women with a history of bipolar disorder, prior post-partum psychotic episodes, or a family history of severe mental illness. Bipolar disorder is a chronic condition marked by intense shifts in mood and energy levels. However, Dr Joly emphasized that post-partum psychosis can also strike women with no prior psychiatric history, sometimes serving as the initial sign of an underlying chronic disorder.
Marcende expressed regret that severe cases like the Clancy trial are often treated merely as crime news items in the press, triggering public anger without fostering an understanding of the psychiatric illness. She expressed hope that public coverage of such tragedies will increase awareness and help families recognize warning signs in loved ones. In France, individuals experiencing suicidal thoughts can contact the national prevention helpline at 31 14 for free, confidential support available 24 hours a day.
