Can I breastfeed if I have a fever?

Jul 07, 2025 Source: Cainiu Health
Dr. Zhang Lu
Introduction
If the fever is caused by common cold, mild mastitis, etc., and the body temperature is below 38.5℃, with good mental status and no contraindicated medications used during lactation, breastfeeding can continue. During a common cold, the mother's breast milk may even produce antibodies that help strengthen the infant's immunity. In the early stages of mild mastitis, continuing breastfeeding can also promote milk drainage and relieve symptoms.

Febrile illness refers to a fever. Whether breastfeeding can continue depends on the cause of the fever and the body temperature. Generally speaking, breastfeeding can continue if the fever is mild and not caused by a contagious disease. However, if the fever is high or caused by an infectious illness, breastfeeding should be stopped. If in doubt, it is recommended to consult a doctor in advance. Detailed explanation is as follows:

If the fever is caused by common colds or mild mastitis, with a body temperature below 38.5°C, and the mother is in good mental condition without taking any medications contraindicated for breastfeeding, nursing can generally continue. During a common cold, antibodies may even develop in the breast milk, helping to strengthen the baby's immunity. In the early stages of mild mastitis, continuing to breastfeed can also help promote milk flow and relieve symptoms. Before feeding, ensure to wash hands thoroughly and clean the nipples, and wear a mask to avoid transmitting the infection to the baby.

When the body temperature exceeds 38.5°C, or the fever is caused by contagious diseases such as influenza virus or coronavirus, or if contraindicated medications are being taken during lactation, breastfeeding should be stopped. High fevers may affect the quality of breast milk, infectious diseases can be transmitted to the infant through close contact, and certain medications can pass into the baby's system through breast milk, endangering the infant's health. In such cases, breastfeeding must be suspended, prompt medical treatment sought, and a breast pump used to express milk regularly to maintain lactation.

During fever, whether to breastfeed should be carefully decided based on individual circumstances. If fever occurs, consult a doctor promptly. Maintain good hygiene before and after breastfeeding. If breastfeeding is paused, regularly express milk to prevent lactation suppression.