Statement: Increased use of fertility treatment in women with asthma

Women with asthma are more likely to have fertility treatment than women without asthma, according to new research presented today at the European Respiratory Society International Congress.

Of the 744 pregnant women with asthma at the Hvidovre Hospital, in Denmark, who gave birth between 2007 and 2013, 12 percent had received fertility treatment compared to 7 percent of the 2,136 women without asthma.

Although the study does not prove that asthma reduces fertility, the researchers say improving women’s asthma management may help them to become pregnant more easily.

Dr Samantha Walker, Director of Research and Policy at Asthma UK, said: “There is a wealth of existing research linking asthma and hormones and this study adds to our knowledge on the subject.

“However, it does not prove that asthma plays a part in reducing fertility in women, we need much more investment in asthma research to be able to understand exactly how asthma could impact on fertility. 

“If you have asthma and you are trying to conceive then you should talk to your GP about your health to ensure you are managing your asthma, understand how your medicines work, and make sure you are taking them correctly. You can also call the Asthma UK Helpline for independent confidential advice from a specialist nurse on 0300 222 5800.”

Notes to editors

For more information, please contact the Asthma UK media team on, 020 7786 4949 (during office hours) or 07951 721393 (outside of office hours).

The Asthma UK Data Portal is a new online tool for journalists to access the latest figures and trends in asthma outcomes across the UK. Information on asthma facts and statistics can also be found on our website.

About Asthma UK

• In the UK, 5.4 million people are currently receiving treatment for asthma: 1.1 million children (1 in 11) and 4.3 million adults (1 in 12).
• Every day, the lives of three families are devastated by the death of a loved one to an asthma attack, and tragically two thirds of these deaths are preventable.
• Asthma UK’s mission is to stop asthma attacks and cure asthma. We do this by funding world leading research, campaigning for improved care and supporting people to reduce their risk of a potentially life-threatening asthma attack.
• For more information about asthma please visit