When girls change their "aunt towel", they often find that there is a lump of "flesh" like something, which is actually caused by the internal structure of female *** officials.
During menstruation, the lining of the uterus is shed, forming menstrual blood that is excreted from the body. This lump of "flesh" is actually a fragment of the endometrium that has been shed.
The endometrium is a layer of tissue that covers the lining of the uterus, and it periodically sheds during menstruation. When the endometrium is shed, it forms fragments and is excreted from the body. These fragments are usually excreted with menstrual blood, so girls will see them when they change their "aunt towels".
In addition to endometrial fragments, sometimes other substances may be excreted along with them. For example, during ovulation, the ovaries release eggs, which pass through the fallopian tubes into the uterine cavity, where they combine with sperm to form a fertilized egg. If the fertilized egg does not implant successfully, then the egg will be expelled from the body with menstruation. Therefore, sometimes girls may also see some fragments of eggs or fertilized eggs when changing the "aunt towel".
This is a normal physiological phenomenon and girls do not need to worry or feel uneasy. If there is any doubt or discomfort with this condition, it is advisable to consult a doctor or ** specialist in a timely manner.