TMS for Pregnancy and Postpartum Depression: Safety, Effectiveness, and What to Expect

If you're navigating depression during pregnancy or after your baby is born, treatment decisions can feel overwhelming—especially when considering medication exposure.

Transcranial Magnetic Stimulation (TMS) offers a non-medication treatment that is both effective and well-tolerated during the perinatal period.

Is TMS Safe During Pregnancy?

Research supports TMS as a promising treatment option for depression during pregnancy, particularly for patients seeking to avoid or minimize medication exposure.

Clinical trials, including randomized controlled trials and open-label studies in pregnant women with major depressive disorder, have demonstrated meaningful reductions in depressive symptoms with good tolerability.

Systematic reviews and meta-analyses report:

• Significant symptom improvement

• Reassuring maternal safety data

• No serious adverse obstetric outcomes

• No negative effects on newborn health in the available literature

  
  

While larger studies are ongoing, current evidence suggests that TMS is a viable and well-tolerated non-pharmacologic treatment during pregnancy.

TMS for Postpartum Depression

TMS has also shown effectiveness for depression in the postpartum period, where untreated symptoms can significantly affect maternal functioning and infant bonding.

Reviews of peripartum populations, including postpartum patients, demonstrate:

• Significant reductions in depressive symptoms

• Favorable tolerability profiles

Safe While Breastfeeding

Because TMS is not a systemic medication, it does not transfer into breast milk. This makes it an appealing option for breastfeeding mothers and does not require interruption of breastfeeding.

Emerging literature continues to support TMS as a safe and effective treatment for postpartum depression.

Why TMS Is Different From Medication

Unlike antidepressants, TMS does not enter the bloodstream. This means:

• No exposure to your developing baby during pregnancy

• No transfer into breast milk

• No systemic side effects

For many patients, this is one of the most important advantages when choosing treatment.

Proven Effectiveness

Studies show TMS effectively treats perinatal depression, with clinical response rates between 41% and 71%.

Many women experience meaningful improvement in depression symptoms, allowing them to better bond with and care for their babies.

What to Expect

TMS treatment typically involves:

• Each session is less than 20 minutes

• Traditionally delivered 5 days per week for 6 weeks; accelerated protocols may complete treatment in as little as 1 week

• You remain awake and alert during treatment

• You can resume normal activities immediately after

• You can continue breastfeeding without any changes

A Medication-Free Option for Perinatal Depression

Depression during pregnancy and postpartum is not something to endure alone. Effective treatment is available, and for many patients, TMS offers a path forward without medication exposure.

References

• Kim DR, Wang E, McGeehan B, et al. Randomized Controlled Trial of Transcranial Magnetic Stimulation in Pregnant Women With Major Depressive Disorder. Brain Stimulation. 2018.

• Kim DR, Epperson N, Paré E, et al. An Open Label Pilot Study of Transcranial Magnetic Stimulation for Pregnant Women With Major Depressive Disorder. Journal of Women's Health. 2011.

• Lee HJ, Kim SM, Kwon JY. Repetitive Transcranial Magnetic Stimulation Treatment for Peripartum Depression: Systematic Review & Meta-Analysis. BMC Pregnancy and Childbirth. 2021.

• Miuli A, Pettorruso M, Stefanelli G, et al. Beyond the Efficacy of Transcranial Magnetic Stimulation in Peripartum Depression: A Systematic Review Exploring Perinatal Safety for Newborns. Psychiatry Research. 2023.

• Cox EQ, Killenberg S, Frische R, et al. Repetitive Transcranial Magnetic Stimulation for the Treatment of Postpartum Depression. Journal of Affective Disorders. 2020.

• Liu C, Pan W, Jia L, et al. Efficacy and Safety of Repetitive Transcranial Magnetic Stimulation for Peripartum Depression: A Meta-Analysis of Randomized Controlled Trials. Psychiatry Research. 2020.

• Ganho-Ávila A, Sobral M, Berg MLD. Transcranial Magnetic Stimulation and Transcranial Direct Current Stimulation in Reducing Depressive Symptoms During the Peripartum Period. Current Opinion in Psychiatry. 2024.