Women who are breastfeeding can usually continue to breastfeed after taking a small amount of diclofenac sodium, but should suspend breastfeeding if they take too much of the drug. Diclofenac sodium is a frequently used antipyretic and analgesic in clinical practice, and is a drug with relatively few toxic side effects. If a woman takes a small amount of diclofenac sodium occasionally during breastfeeding, it will not adversely affect the baby and she can continue to breastfeed. At the same time, it is important to drink as much water as appropriate to promote the elimination of the drug, in order to minimize the impact on the baby. If a woman takes a large amount of diclofenac sodium during breastfeeding or uses the drug for a longer period of time, the drug will enter the baby’s body through breast milk, and there is a certain possibility that it will cause adverse effects on the baby, and breastfeeding should be stopped. In addition, the specific use of diclofenac sodium in the clinic should be carried out under the guidance of a doctor, especially during breastfeeding need to be careful with the use of drugs.