Is Botox safe during pregnancy or breastfeeding?
⚠️ Contact your doctor right away if you notice unusual weakness or difficulty swallowing after an injection
Although rare, botulinum toxin can occasionally spread beyond the injection site and cause muscle weakness, trouble swallowing, or breathing difficulty. If you experience any of these symptoms, especially during pregnancy, seek medical attention immediately. Also inform your obstetrician any time you receive a new medication or cosmetic treatment.
Short answer
The honest answer is: we do not know for certain. Current evidence is very limited, but what exists has not shown clear harm to babies at typical cosmetic doses. Most doctors recommend avoiding Botox during pregnancy and breastfeeding out of caution, since no controlled safety trials exist for these groups.
What the research shows
Botulinum toxin (Botox) is not well studied in pregnant or breastfeeding people because these groups are routinely excluded from clinical trials. [4] A major NIH consensus panel stated plainly that the safety of Botox during pregnancy and breastfeeding is unknown. [4]
More recent reviews have gathered the limited human data available. A 2025 review of 658 reported cases found no increased rate of fetal loss or birth defects compared to the general population, but stressed that most cases involved only first-trimester exposure at lower doses, so data on later pregnancy and higher doses are very scarce. [5] A separate 2025 review focused on migraine treatment found that, because Botox is injected locally and is poorly absorbed into the bloodstream, the theoretical risk to the fetus or nursing infant is low, though this cannot be confirmed without proper trials. [1]
For breastfeeding specifically, evidence is even thinner. Animal studies suggest the toxin does not transfer significantly into breast milk, and a survey of dermatologists found no reported adverse effects in nursing infants, but this type of informal report cannot confirm safety. [5] [6]
What this means for you
Because Botox is an elective cosmetic treatment, most physicians advise postponing injections until after pregnancy and after you have finished breastfeeding. The limited data are reassuring in that no clear pattern of harm has emerged, but the absence of proven harm is not the same as proven safety. [3] [2] A review of cosmetic procedures during pregnancy noted that safety data on Botox are insufficient to make firm recommendations, even though systemic absorption appears negligible. [3]
If you received Botox before knowing you were pregnant, try not to panic. Available case reports and reviews have not shown a spike in birth defects at cosmetic doses. [1] [2] Share the information with your obstetrician so they can monitor your pregnancy appropriately.
What to ask your surgeon or doctor
Before any procedure, consider asking: Is this treatment truly necessary right now, or can it wait? If Botox is being considered for a medical reason (such as migraine) rather than a cosmetic one, the risk-benefit calculation may be different and should involve both your neurologist and your obstetrician. [1] [5] Always disclose your pregnancy or breastfeeding status before receiving any injection.
Caveats
All available studies on this topic are observational, meaning they rely on case reports, surveys, and reviews rather than controlled experiments. [6] [7] A survey of dermatologists found that many had personally used or administered Botox while breastfeeding with no reported problems, but the authors cautioned that these findings should be considered hypothesis-generating only, not proof of safety. [6] Researchers consistently call for pregnancy registries and prospective studies to fill this important gap. [5]