Understanding Perinatal OCD: Symptoms, Misconceptions, and Appropriate Referrals

By Birth & Baby University · Last updated: October 2026 · 4 min read

Few things frighten new parents more than a sudden, vivid thought of something terrible happening to their baby. They often keep it secret from fear of being judged or reported. Understanding perinatal OCD, and what research shows about intrusive thoughts, lets doulas respond in a way that encourages disclosure and connects parents to appropriate care.

Key takeaways

• Unwanted intrusive thoughts of harm to the infant are reported by most new mothers, and thoughts of intentionally harming the infant by nearly half in one Canadian study.
• In that study, mothers with such thoughts, or with OCD, were not more likely to report aggression toward their infant.
• Perinatal OCD is likely more common than in the general population, and obsessions often concern harm to the child.
• Cognitive behavioral therapy with exposure and response prevention is a first-line treatment, according to a 2022 review. Diagnosis and treatment belong to clinicians.

What the research says

What perinatal OCD looks like

A 2022 review of perinatal OCD reports that prevalence is likely higher in the perinatal period than in the general population, that evidence is limited in all areas and that rates of both OCD and subthreshold symptoms vary widely across studies. Clinical features are more likely than at other times to concern harm to the child, with contamination and aggressive obsessions and cleaning and checking compulsions especially common. Observational and randomized trials support cognitive behavioral therapy with exposure and response prevention as first-line treatment, with limited evidence for SSRIs, and treatment must weigh the risks of treatment against the risks of untreated illness. The authors note that evidence specific to the perinatal period is sparse. A 2025 review of perinatal anxiety and related disorders adds that OCD has an elevated risk of development and exacerbation in perinatal periods.

Intrusive thoughts and risk to the baby

The protocol for a British Columbia cohort study states that unwanted intrusive thoughts of infant-related harm are reported by the vast majority of new mothers, with half reporting thoughts of intentionally harming the infant, and that preliminary evidence suggested they are not associated with increased risk of harm. The follow-up report on 388 postpartum women found that 44.4 percent had unwanted intrusive thoughts of intentional harm, and that few participants (2.9 percent) reported behaving aggressively toward their infant. Those with such thoughts were not more likely to report aggression (2.6 percent versus 3.1 percent), and neither were women with OCD (1.9 percent versus 3.5 percent). The authors concluded the study found no evidence that these thoughts or OCD are associated with increased infant harm. The data are self-reported, from one province, in a subset of participants, so they are reassuring but not a guarantee about any individual.

Screening and distinctions

ACOG Clinical Practice Guideline No. 4 covers screening and diagnosis for anxiety-related disorders and also for postpartum psychosis, which is a different and urgent condition (see the article on postpartum psychosis warning signs). Distinguishing between them requires a clinician. Per ACOG’s own page it replaces Committee Opinion 757 (2018) on screening for perinatal depression. Its recommendation text is a member benefit, so this article cites its scope and not its specific recommendations.

What this means for doulas

• Respond with calm. If a client tells you about an intrusive thought, thank them for trusting you. Avoid shock, and avoid vowing to keep secrets that you might not be able to keep if a person is in danger.
• Share what the research says, carefully. “Many new parents have these thoughts, and studies have not found that having them predicts harming a baby” is accurate. It does not replace an assessment.
• Refer for evaluation. Persistent thoughts, rituals or avoidance of caring for the baby, or distress and impaired functioning, call for a clinician who understands perinatal mental health.
• Know the emergency signs. Confusion, hallucinations, paranoia, not sleeping despite exhaustion, or statements of intent to harm self or baby are emergencies. Call emergency services or crisis lines.

Putting the evidence into practice

• Normalize unwanted thoughts in prenatal teaching without detail that could alarm: “Many parents have scary thoughts they do not want. Tell someone.”
• Ask directly and kindly at postpartum visits whether the client is having thoughts that scare them.
• Keep a referral list that includes clinicians trained in exposure and response prevention or perinatal mental health. National resources include 988 and the National Maternal Mental Health Hotline (1-833-852-6262).
• Follow your certifying organization’s rules and local mandated reporting requirements, and know them before a disclosure occurs.

The bottom line

Perinatal OCD is real, treatable and often hidden by shame. The research available shows that scary intrusive thoughts are common and not linked to harmful behavior in the study reviewed, but a clinician must assess each person. Doulas help by listening without alarm and connecting parents to care.

This article is for professional education. It is not medical, legal or tax advice. Check the standards of your certifying organization and the rules where you work.

Sources and further reading

• Hudepohl N, et al. Perinatal Obsessive-Compulsive Disorder: Epidemiology, Phenomenology, Etiology, and Treatment. Current Psychiatry Reports 2022. Read the source
• Fairbrother N, et al. Anxiety and Related Disorders During the Perinatal Period. Annual Review of Clinical Psychology 2025. Read the source
• Collardeau F, et al. Maternal unwanted and intrusive thoughts of infant-related harm, obsessive-compulsive disorder and depression in the perinatal period: study protocol. BMC Psychiatry 2019. Read the source
• Fairbrother N, et al. Postpartum Thoughts of Infant-Related Harm and Obsessive-Compulsive Disorder: Relation to Maternal Physical Aggression Toward the Infant. Journal of Clinical Psychiatry 2022. Read the source
• ACOG Committee on Clinical Practice Guidelines-Obstetrics. Screening and Diagnosis of Mental Health Conditions During Pregnancy and Postpartum: ACOG Clinical Practice Guideline No. 4. Obstetrics & Gynecology 2023. Read the source
• National Institute of Mental Health. Perinatal Depression. NIH web page, read 16 October 2026 (National Maternal Mental Health Hotline, 1-833-852-6262; 988 Suicide and Crisis Lifeline). Read the source
• Office on Women’s Health, U.S. Department of Health and Human Services. Postpartum depression. Web page (page dated October 17, 2023), read 16 October 2026. Read the source

Learning to respond calmly to hard disclosures is part of postpartum doula preparation. See the training and mentorship options on the For Doulas page.

More for professionals: the Professionals Blog.