Is there a crack in the nipple? Is it invagination?

A cracked nipple does not necessarily mean an invagination. A cracked nipple

may be a normal texture or morphological feature of the nipple surface and does not necessarily mean an invagination problem. The appearance of a nipple may vary from person to person.

Secondly, nipple invagination is often caused by congenital abnormalities or acquired diseases, and nipple gap may be a natural physiological manifestation of individuals.

In addition, nipple invagination may affect lactation and other functions, while simple gap usually does not cause obvious obstacles to these functions.

If there is doubt or concern about the condition of the nipple, especially if it is accompanied by other abnormal symptoms such as nipple discharge, pain, redness, etc., seek medical attention promptly and confirm the specific situation through examination and evaluation by a professional doctor. The doctor may perform a detailed physical examination, ask about medical history, etc., and may recommend further examinations such as breast ultrasound if necessary to ensure breast health. Do not blindly judge and deal with yourself, so as not to delay the disease or cause unnecessary trouble.