The age for correction of nipple invagination is not clinically conclusive, but it is generally recommended that it should be detected and treated early. There are two types of nipple invagination, congenital and acquired. Congenital nipple invagination is usually corrected at the age of about 18, when women are basically fully developed and do not need to breastfeed. If the nipple invagination is not serious, you can also choose to continue to pull the nipple at a young age to lengthen the nipple, which is effective for mild and moderate nipple invagination, and for severe nipple invagination, it can also provide some relief. Alternatively, a negative pressure breast pump can be used to help with the traction. If neither of these methods is effective, surgery needs to be considered around the age of 18. Acquired nipple invagination is often caused by unreasonable corseting or wearing too tight underwear that affects blood circulation, or local inflammation, trauma, tumors, etc. If it occurs at an older age and does not affect normal life, and the patient does not have a strong desire to correct it, it can be considered untreated. If you are younger and want to correct it, you can try physical methods such as manual pulling and negative pressure attraction, but those who are not treated by physical methods still need surgery. The common surgical methods include stenting and incisional nipple inversion correction, and the doctor will use different methods depending on the patient’s condition. In addition, it is important to pay attention to cleanliness and maintain hygiene during the correction treatment to avoid further infection. Do not wear underwear for the time being after the surgical treatment to avoid wound friction and infection.