Intrusive thoughts after birth and postpartum OCD
The thought horrifies you because it goes against everything you want. That horror is the point.
Updated October 13, 2026 · sources checked October 13, 2026
In short
Unwanted, frightening thoughts of your baby being harmed, even by you, are very common after birth: in one study about 44% of new mothers had them, and they were not linked to harming the baby. When these thoughts take up hours, cause great distress or lead to checking and avoiding, it may be perinatal OCD, which is treatable with CBT and sometimes medication.
Is this normal? When to call
Common: a sudden, unwanted thought or image of your baby being hurt, which shocks you and passes. See your GP, midwife or OB-GYN soon: thoughts that keep coming back and take up a lot of your day, or that make you wash, check, ask for reassurance or avoid caring for your baby. Call 911, 999 or 112 now: thoughts with confusion, hallucinations or beliefs that feel true, or a feeling that you might act on a thought of harming yourself or your baby.
The thoughts nobody talks about
You are at the top of the stairs and you picture your baby falling. You are bathing him and a thought arrives: "what if I held him under?" You see the kitchen knife and an image flashes into your mind. You would never, ever want to do any of it, and that is exactly why it is so frightening.
These are unwanted intrusive thoughts. The CDC includes "scary thoughts that come unwanted or are hard to get rid of" among the signs to mention to a health professional after birth, not because you are dangerous, but because you deserve support.
What the research says
- In a study of 100 women followed from pregnancy to 12 weeks after birth, thoughts of accidental harm to the baby were universal, and close to half had unwanted thoughts of intentionally harming their baby. The authors concluded these thoughts are "a relatively normative experience during the early postpartum period" (Fairbrother and Woody, 2008).
- In a study of 388 new mothers, 44.4% reported unwanted thoughts of intentional harm. They were not more likely to behave aggressively toward their baby than mothers without these thoughts, and the same was true for mothers with OCD (Fairbrother et al., 2022).
- The Royal College of Psychiatrists: "Although mothers with OCD may fear harming their baby, they are not a risk to their babies. There are no recorded cases of people with OCD acting on their obsessional thoughts."
When thoughts become perinatal OCD
The Royal College of Psychiatrists describes perinatal OCD in three parts:
- Obsessions: unwanted thoughts, images, urges or doubts that keep returning: germs and contamination, fear of having done something wrong, images of harming the baby (including sexual or violent ones), perfectionism.
- Anxiety, guilt, disgust or low mood.
- Compulsions: washing or sterilizing again and again, checking the baby's breathing many times a night, seeking reassurance, counting or praying, and avoiding things: nappy changes, bathing, knives, being alone with the baby.
Symptoms "will usually bother you for at least an hour a day, and often much more."
How common? The College gives 2 to 3 in 100 women in the year after birth. A Canadian study that asked specifically about baby-related symptoms found a point prevalence close to 9% around 8 weeks after birth (Fairbrother et al., 2021).
OCD or emergency? The difference
| Intrusive thoughts or OCD | Postpartum psychosis (emergency) |
|---|---|
| Thoughts feel horrible and "not me" | Beliefs may feel true to the person |
| You avoid or check to keep your baby safe | Behaviour can be confused or out of character |
| No hallucinations, no confusion | Hallucinations, confusion, delusions |
| Sleep disturbed by worry | Little or no sleep, very high or rapidly changing mood |
| See a professional soon | Call 911, 999 or 112 now |
Sources: Royal College of Psychiatrists, NHS, NIMH. If you are unsure, call the same day: a professional can tell the difference. Read the signs of postpartum psychosis.
What helps
The Royal College of Psychiatrists names two main treatments, used alone or together: cognitive behavioural therapy (CBT) and medication. If you breastfeed, decisions about medication are made with your doctor using up-to-date safety information; do not stop a prescribed medicine suddenly.
Self-help the College describes: tell someone how you feel, learn how OCD works, use a self-help workbook, rest whenever you can and accept help, join a group with other mothers, avoid alcohol or drugs to control anxiety, and do not blame yourself.
Words to say to a professional
"I keep getting horrible thoughts about my baby being hurt, sometimes by me. I hate them and would never want to act on them, and I've started avoiding things because of them. I'd like help."
For your partner
Listen without panic: the thought is not a wish. Encourage her to see a professional. During treatment, the Royal College notes that support may mean encouraging her to face feared situations and saying "no" to helping with compulsive rituals: ask her therapist how best to help, rather than giving endless reassurance.
More on postpartum anxiety and mental health after birth.
Questions parents ask
Is it normal to have thoughts of harming my baby?
Unwanted intrusive thoughts of harm are common. In a study of 100 new mothers, thoughts of accidental harm were universal and close to half had unwanted thoughts of intentional harm. Researchers describe them as a relatively normative experience in the early postpartum period.
Does having these thoughts mean I will act on them?
In a study of 388 new mothers, those with unwanted thoughts of intentional harm, or with OCD, were not more likely to behave aggressively toward their baby. The Royal College of Psychiatrists says there are no recorded cases of people with OCD acting on their obsessional thoughts.
How is postpartum OCD treated?
The Royal College of Psychiatrists names cognitive behavioural therapy and medication as the two main treatments, used alone or together.
When are frightening thoughts an emergency?
When they come with confusion, hallucinations or beliefs that feel true, with little or no sleep, or when you feel you want to or might act on a thought of harming yourself or your baby. Call 911, 999 or 112.
Sources
- Fairbrother N, Woody SR, New mothers' thoughts of harm related to the newborn, Arch Womens Ment Health 2008 (PMID 18463941) checked October 13, 2026
- Fairbrother N et al., Postpartum thoughts of infant-related harm and OCD, relation to maternal aggression, J Clin Psychiatry 2022 (PMID 35235718) checked October 13, 2026
- Fairbrother N et al., High prevalence and incidence of OCD across pregnancy and the postpartum, J Clin Psychiatry 2021 (PMID 34033273) checked October 13, 2026
- Royal College of Psychiatrists, Perinatal OCD checked October 13, 2026
- CDC Hear Her, Urgent maternal warning signs checked October 13, 2026
Mamavela explains; it does not replace your midwife, doctor or pediatrician, who know your situation. If something worries you, call them. In an emergency, call 911 (US), 999 (UK) or 112.
If it helps, there is also an ebook on this: After Baby: Taking Care of Your Mind