Can Birth Control Cause Allergies? What the Research Shows

People ask this question in two ways: can birth control cause an allergic reaction in the person using it, and can taking the pill before pregnancy affect a child’s allergy risk? True allergic reactions to hormonal birth control are rare, though latex condoms are a known trigger for people with latex allergy. On the second question, one small Finnish study raised the possibility, but a much larger Norwegian study found no link between the combined pill and childhood asthma or wheezing.

This guide covers both questions and what the evidence actually shows. For more, see our living with allergies guides.

Jump to: Quick answer · Reactions to birth control · The pill and children’s allergies · Comparing the studies · When to talk to a doctor · FAQ

Quick answer

• Latex condoms can trigger reactions in people with latex allergy; ACAAI lists condoms among latex products.
• Allergy to hormones is rare: progestogen hypersensitivity, an allergic-type reaction to progesterone-like hormones, has fewer than 200 reported cases.
• Finnish study (2006): children of mothers who had used certain pill types before pregnancy had higher odds of hay fever, mainly boys with a parental allergy history.
• Norwegian study (2011): in tens of thousands of children, using the combined pill before pregnancy wasn’t linked to asthma, wheezing or chest infections.
• Bottom line: the evidence doesn’t support avoiding the pill to prevent a future child’s allergies. Talk to your doctor about any concerns.

Allergic reactions to birth control itself

Latex condoms

The American College of Allergy, Asthma and Immunology (ACAAI) lists condoms among everyday products that may contain latex. Latex allergy can cause itching, redness and swelling where latex touches the skin, hives and, in severe cases, anaphylaxis. Non-latex condoms are widely available. See latex allergy for more.

Progestogen hypersensitivity

Progestogen hypersensitivity is a rare condition with cyclical allergic-type reactions, such as hives, swelling and even anaphylaxis, to the body’s own progesterone or to progestins in medications. A 2025 case report noted fewer than 200 cases in the medical literature and a lack of standard diagnostic or treatment protocols. If you notice hives or swelling that follow your cycle or started with a hormonal method, see a doctor.

Does the pill before pregnancy affect a child’s allergies?

In 2006, Finnish researchers published a study in Allergy of 1,182 children aged 5 to 6 (618 with asthma and 564 without). Children whose mothers had used pills containing desogestrel, gestodene or cyproterone acetate (each combined with ethinylestradiol) before pregnancy had higher odds of allergic rhinitis (hay fever) than children whose mothers hadn’t used the pill (odds ratio 1.67). The higher risk was seen mainly in children with a parent with allergies, especially boys. There was no link with asthma or eczema.

A much larger study came in 2011. Researchers from the U.S. National Institutes of Health and Norway analyzed the Norwegian Mother and Child Cohort, following 60,225 children to 6 months, 42,520 to 18 months and 24,472 to 36 months. Using the combined pill before pregnancy was not associated with chest infections, wheezing or asthma. Progestin-only pill use in the year before pregnancy had a slight link with wheezing at 6 to 8 months, which the authors said may reflect confounding or bias.

Comparing the studies

The Norwegian authors said their findings “should provide reassurance to the vast majority of mothers” who used the pill before pregnancy. Both studies are observational, and neither shows that the pill causes allergies.

When to talk to a doctor

• You get hives, swelling or breathing symptoms after using a contraceptive.
• Your symptoms follow a monthly pattern.
• You have latex allergy and need contraception advice.
• You’re planning a pregnancy and have questions about family allergy risk.

For more on how allergies start, see adult-onset allergies and genetics and eczema.

This guide is general information, not medical advice. Read our medical disclaimer.

Frequently asked questions

Can birth control pills cause allergic reactions?

Rarely. Progestogen hypersensitivity, an allergic-type reaction to progesterone-like hormones, has fewer than 200 reported cases. See a doctor if you get hives or swelling after starting a hormonal method.

Can you be allergic to condoms?

Yes, if you’re allergic to latex. Non-latex condoms are an alternative.

Does taking the pill before pregnancy cause allergies in children?

A small Finnish study linked certain pill types to more hay fever in children, but a large Norwegian study found the combined pill wasn’t linked to childhood asthma or wheezing.

Should I stop the pill to protect a future child from allergies?

The evidence doesn’t support that. Talk to your doctor about contraception and pregnancy planning.

What is progestogen hypersensitivity?

A rare condition with cyclical allergic-type reactions, such as hives, swelling or anaphylaxis, to the body’s own progesterone or to progestins in medications.

Sources

• Keski-Nisula L, Pekkanen J, Xu B, et al. Does the pill make a difference? Previous maternal use of contraceptive pills and allergic diseases among offspring. Allergy. 2006;61(12):1467-1472.
• Hancock DB, Håberg SE, Furu K, et al. Oral contraceptive pill use before pregnancy and respiratory outcomes in early childhood. Pediatr Allergy Immunol. 2011;22(5):528-536.
• Balkan AO, Sistla D, Rhinehart EL. Elagolix as a diagnostic and therapeutic bridge to surgery in refractory progestogen hypersensitivity. JCEM Case Rep. 2026;4(1):luaf314.
• American College of Allergy, Asthma and Immunology. Latex allergy.

Last reviewed: October 21, 2026.