Can I breastfeed if I have HIV?

Yes — this changed on January 31, 2023. U.S. guidelines moved from discouraging breastfeeding to shared decision-making: if you are on antiretroviral therapy with a sustained viral load under 50 copies/mL and you want to breastfeed, you should be supported in that choice. Formula and pasteurized donor milk remain the only options with zero risk. Breastfeeding with sustained suppression carries risk under 1% — low, but not zero.

What changed, and when

On January 31, 2023, NIH's Office of AIDS Research announced that HHS HIV clinical practice guidelines now support shared decision-making on infant feeding, and quantified the risk of HIV transmission through breastfeeding for people who are virally suppressed as less than 1%. In the guidelines' own account of what preceded it: because of the potential for HIV transmission in human milk, previous U.S. clinical guidelines did not recommend breastfeeding for individuals with HIV^[1].

The HHS Panel was explicit about why it changed. It balanced the low risk of transmission with strong community desire to breastfeed, acknowledged community concerns and the desire for bodily autonomy, and promoted a greater focus on shared decision-making. It also noted that restricting breastfeeding may increase inequities that already exist for many women with HIV — including health risks and access to safe water and formula — and that breastfeeding is congruent with many community norms and cultural traditions^[1]. In other words, the change came partly from science and partly from listening.

Is this still current in 2026? Yes. The HHS Perinatal Guidelines section Preventing HIV Transmission During Infant Feeding carries "Updated: June 25, 2026 / Reviewed: June 25, 2026" and still centers shared decision-making^[3], and the Perinatal Guidelines "What's New" page likewise carries 2026 dates^[4].

What the current guidance actually says

Counseling comes first. When there is potential for perinatal transmission, the guidelines call for evidence-based, patient-centered counseling to support shared decision-making about infant feeding — beginning before conception or as early as possible in pregnancy, reviewed throughout pregnancy, and revisited after delivery^[2].

The core numbers and thresholds:

• Zero-risk option: replacement feeding with properly prepared formula or pasteurized donor human milk from a milk bank eliminates the risk of postnatal HIV transmission through breastfeeding^[2].
• Breastfeeding with suppression: achieving and maintaining viral suppression (under 50 copies/mL) through ART during pregnancy and postpartum decreases breastfeeding transmission risk to less than 1%, but not zero^[2].
• When breastfeeding is supported: if ART is taken consistently and the viral load is maintained under 50 copies/mL for at least 3 months before delivery, counseling should cover formula, banked donor milk, and breastfeeding — and those who choose to breastfeed should be supported in that decision^[2].
• When replacement feeding is recommended: when ART is not being taken or viral suppression has not been achieved during pregnancy (at minimum through the third trimester) and at delivery, formula or banked pasteurized donor human milk is recommended^[2].

Choosing formula is equally supported, not a fallback: if formula feeding is chosen, providers should support that decision, ask about potential barriers, and explore ways to address them^[2].

If you do breastfeed, the guidelines recommend exclusive breastfeeding for the first 6 months, then complementary foods with continued breastfeeding if desired — and note there is no evidence that formula supplementation increases the risk of HIV acquisition in a breastfed infant in the context of parental ART and viral suppression. Breastfed infants will often need more laboratory monitoring and sometimes additional preventive antiretroviral medication compared with formula-fed babies^[2]. If the viral load becomes detectable (50 copies/mL or higher) during breastfeeding, breastfeeding should be stopped temporarily or discontinued and replacement feeding started while the viral load is rechecked; most experts recommend permanent discontinuation at 200 copies/mL or higher, and if a repeat viral load is under 50 copies/mL, a joint decision is made by parent and providers about whether to resume^[2]. Because very rapid weaning was associated with increased HIV shedding into breast milk in the pre-ART era, weaning over a 2- to 4-week period might be safer, with attention to breast care and avoiding engorgement and milk stasis^[2]. With mastitis or a problem in one breast, feeding stops on the affected side and continues on the unaffected side, resuming both when symptoms resolve^[4]. An infant's last virologic test is done 3 months after breastfeeding stops and at least 2 weeks after the infant finishes preventive antiretroviral medication^[4].

The evidence behind "less than 1%, but not zero"

Start with the baseline this guidance replaced. Without maternal ART or infant preventive antiretrovirals, the risk of an infant acquiring HIV through breastfeeding is 15% to 20% over 2 years^[3]. Everything below is what treatment does to that number.

• PROMISE (more than 2,400 women with CD4 counts of 350 cells/mm³ or higher), comparing extended infant nevirapine with maternal ART: estimated transmission of 0.3% at 6 months and 0.6% at 12 months, the same in both arms^[3]. In the maternal-ART arm (1,220 mother–infant pairs) there were 7 transmissions; in 2 of those, maternal plasma HIV RNA was undetectable or under 40 copies/mL at the infant's first positive sample — and in both, maternal HIV RNA had been detectable at delivery^[5].
• 2017 systematic review and meta-analysis (6 studies, ART started in pregnancy and continued at least 6 months postpartum): pooled postnatal transmission at 6 months of 1.1% (95% CI 0.32%–1.85%), with individual study rates from 0.2% to 3.1%^[3].
• 2025 systematic review and meta-analysis (13 studies): monthly postnatal transmission risk while breastfeeding of 0.1% (95% CI 0.0–0.2) with a recent maternal viral load under 50 copies/mL, versus 0.3% (95% CI 0.0–1.8) at 50 copies/mL or higher^[3].
• Mma Bana (Botswana) is where the "not zero" caveat comes from: 2 transmissions during lactation, both in the triple-NRTI arm, with maternal plasma and breast-milk HIV RNA under 50 copies/mL at 1 and 3 months postpartum^[3].
• BAN secondary analysis found that greater adherence to maternal ART was associated with lower breast-milk and plasma viral loads, and that when maternal plasma viral load stayed under 100 copies/mL during breastfeeding there were no infant HIV acquisitions^[3]. High-income-country case series in which ART began before pregnancy or in the first trimester reported no transmissions, though the numbers were small^[5].

How this sits with U=U. For sex, the evidence is settled: people with HIV who take ART as prescribed and maintain a viral load below 200 copies/mL will not transmit HIV to their sex partners^[2]. Breastfeeding is where the language stops at "very low" rather than "zero" — federal guidance uses a stricter threshold (sustained under 50 copies/mL), quantifies the residual risk as less than 1% but not zero, and documents the handful of transmissions that occurred despite suppression at the time of testing^[3]. That gap is exactly why the guidelines chose shared decision-making instead of either a prohibition or a blanket reassurance^[1].

Where CDC and the AAP stand

CDC aligns with shared decision-making: mothers with HIV who want to breastfeed should receive patient-centered, evidence-based counseling on infant feeding options to allow for shared decision-making, beginning before pregnancy or as early as possible and continuing after delivery. CDC also states both halves of the arithmetic — replacing breastfeeding with properly prepared formula or pasteurized donor milk eliminates the risk of HIV transmission after birth, and achieving and maintaining viral suppression on ART decreases breastfeeding transmission risk to less than 1%, but not zero^[6].

The American Academy of Pediatrics takes the same shape. In its 2024 clinical report, AAP states that avoidance of breastfeeding is the only infant feeding option with 0% risk of HIV transmission — and that pediatricians should be prepared to offer a family-centered, nonjudgmental, harm-reduction approach to support people with HIV on ART with sustained viral suppression below 50 copies/mL who want to breastfeed. For people not on ART or without viral suppression, clinicians should recommend against breastfeeding^[7].

AAP put it in plainer words for its own members: while many pediatricians were taught that breastfeeding is contraindicated for people with HIV, this is no longer the case, and people on ART maintaining a viral load under 50 copies/mL should be supported to choose the feeding option that best suits their needs — their own milk, formula, or certified banked donor milk. AAP names mastitis, cracked nipples, and infant thrush as complications that can theoretically increase transmission risk, and recommends a multidisciplinary team^[8].

So the accurate summary is narrow and important: formula and pasteurized donor milk are still the options CDC and AAP identify as zero-risk and still what they prefer on risk grounds — but breastfeeding is no longer treated as contraindicated, and no longer mandated against for parents on ART with sustained suppression^[6][7].

Your rights, and where to get help

One line in the guidelines deserves to be read out loud, because it is the answer to a fear many parents carry: engaging Child Protective Services or similar agencies is not an appropriate response to infant feeding choices impacted by HIV^[2]. NIH states the same thing in its own words — it is inappropriate to engage CPS or similar services in response to the infant feeding choices of people with HIV^[1]. If a provider raises that threat, they are out of step with federal guidance, and you can say so.

You also do not have to navigate this alone, and neither does your clinician. The National Perinatal HIV/AIDS Hotline — 1-888-448-8765 — offers free clinical consultation around the clock^[2], and AAP points pediatricians to the same 24/7 perinatal HIV consultation line^[8]. Bringing that number to an appointment is a legitimate move, especially if your team hasn't cared for many parents with HIV.

Practically, the strongest position to be in is an early one: start the infant-feeding conversation before conception or early in pregnancy, revisit it as your viral load results come in, and revisit it again after delivery^[2]. Whatever you choose, the guidelines say your provider's job is to support it.

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