Patient's question:
Checked the bone age,it is 12.6 years old,
other problems are not present.
Doctor's answer:
Hello, a 12-year-old girl found a lot of blood flowing from her external genitalia while using the restroom. This is the first menstrual period. Don't panic, this is normal. Pay close attention to hygiene during the menstrual period and keep the external genitalia clean.