Women who have acne when they are pregnant may be caused by hormonal changes, not paying attention to cleanliness, pathogen infection, etc. If you pay attention to cleanliness to prevent infection, the acne will be good after giving birth to a child, if you don’t remove these factors, the acne will not be easy to get well after giving birth to a child. 1. Hormonal changes: women’s hormones change significantly after pregnancy, when androgens are elevated, it will lead to sebaceous gland secretion, oil discharge is not smooth, it will lead to acne. 2. Do not pay attention to clean: If you do not pay attention to hygiene during pregnancy, excessive sweating or thickening of the stratum corneum is not removed in a timely manner, it can also lead to acne. 3. Pathogen infection: If you are infected by bacteria and other pathogens during pregnancy, it can lead to localized inflammation, causing changes in the sebaceous glands and becoming acne. Therefore, the cause of acne is not only related to pregnancy, but also related to other factors. If you pay attention to hygiene during pregnancy, keep your skin clean and prevent pathogen infection, then acne will get better naturally after giving birth. If these factors are not removed, then acne will not get better easily. If a woman has a more serious case of acne during pregnancy, it is recommended that she go to the hospital in time to seek medical attention and receive standardized treatment under the guidance of a doctor to promote the alleviation of the condition.