What are the causes of vaginal bleeding in young girls?

　　Menarche at one and a half years old

　　An American newspaper once reported an anecdote about a four-year-old girl becoming a mother. Many people thought it was impossible when they saw the report, and people around them didn't believe it. Some even thought it was sensationalism. In fact, this is a rare phenomenon, and it is understandable that it is difficult for readers to accept it as an anecdote. However, from the perspective of obstetrics and gynecology, if a young girl has precocious puberty due to some reasons and has early menstruation and ovulation, if she encounters sperm , pregnancy is possible. A few years ago, a patient from Xinhui County, Guangdong, came to see a doctor because of vaginal bleeding that started when he was one and a half years old, and his breasts were swollen once a month. After endocrine testing and B-type ultrasound examination, it was found that the development of the patient's gonads and sexual organs had reached the level of a thirteen or fourteen-year-old patient, proving that he was a patient with precocious puberty. The doctor had been following this patient for six years. When she was nearly eight years old, female The secondary sexual characteristics are the same as those of an eighteen-year-old girl. according to clinical Her gonads and sexual organs developed about ten years earlier than the average person, so there was no problem in diagnosing her as precocious puberty. During several years of observation, no other symptoms were found in this female patient. disease , disease-induced precocious puberty can be ruled out. Most of these patients are related to premature gonadal development.

　　Other causes of vaginal bleeding in young girls

　　There are many reasons for vaginal bleeding in young girls. Only careful and detailed examination and long-term observation are required to find the real cause. In addition to developmental factors, some diseases also present certain symptoms of precocious puberty. Doctors once discovered a case of a baby girl with irregular vaginal bleeding. The patient was only ten months old. After examination, trauma factors were ruled out, and there was no swelling in the breasts. The patient's vaginal bleeding intervals were getting shorter and shorter, but the female secondary sexual characteristics were not obvious. After B-mode ultrasound examination, it was found that there was a solid mass in the lower abdomen. After surgical removal and pathological examination, it was found to be endodermal sinus tumor. There was also a case of a five-year-old girl who had been suffering from periodic vaginal bleeding for six months. She had no abnormal body appearance and no special findings during the examination. However, there was a solid mass in the lower abdomen after B-ultrasound examination. After surgery, the pathological diagnosis was ovarian testicular blastoma. Such patients generally have male Chemical manifestations, rarely affected by estrogen, but the vaginal bleeding in the patient above was caused by estrogen.

　　What is precocious puberty?

　　Vaginal bleeding in young girls is one of the common symptoms of precocious puberty. In addition, it is often accompanied by certain characteristics of premature development of female secondary sexual characteristics. The most common ones are breast enlargement, premature development of the labia majora and minora, enlargement of the clitoris, and premature growth of armpit and pubic hair. These manifestations indicate that the ovaries mature prematurely and the gonads begin to secrete. Periodic vaginal bleeding indicates the onset of menstruation and the ovaries starting to ovulate. If sperm is encountered, pregnancy may occur, so it is not impossible for a young girl to become a "mother". Precocious puberty is mostly caused by premature hypothalamus activity and premature gonadal function. A few are caused by brain lesions, adrenocortical lesions, thyroid lesions, gonadal lesions, etc., which cause premature gonadal function. There are also some patients who accidentally took estrogen-containing drugs for adults. Once discovered, they should be stopped immediately, and the symptoms of precocious puberty will soon disappear.

　　For patients with symptoms of precocious puberty, they should go to a qualified Hospital Conduct detailed examination to find out the cause of precocious puberty so that targeted treatment can be carried out. If it's a purely developmental problem, it's harmless. But because girls are naive, they should avoid doing stupid things. Parents need help Child Maintain good hygiene during menstruation to prevent other complications.