Why do women’s private parts smell?

　　somewhat young female Increased leucorrhea and frequent foul odor； Every time after sex, the vagina will also emit a nasty fishy smell. For this reason, they are very anxious. What is the cause of the bad smell in the lower body? Turns out it was bacterial vaginosis.

　　it is not called Vaginitis It is called vaginosis because there is no inflammatory reaction in the vaginal mucosa and few white blood cells are detected in vaginal secretions. Therefore, it was officially named bacterial vaginosis by the medical organization in 1984.

　　The bacteria that cause bacterial vaginosis are mainly Gardnerella vaginalis. Gardnerella is anaerobic and easily grows in the vagina. The growth temperature of Gardnerella is 25-40℃, and the optimal temperature for reproduction in the human body is 35-37℃.

　　Gardnerella is not easy to grow at pH 4.5 and does not grow at pH 4.0, which is related to reproductive age. healthy Consistent with the acidic environment in a woman’s vagina. Because vaginal bacteria in the vagina of adult women can decompose glycogen contained in vaginal epithelial cells into lactic acid, keeping vaginal secretions acidic (pH 4-5), and the acidic environment is not conducive to the growth and reproduction of Gardnerella vaginalis. Therefore, even if 60% of healthy women carry Gardnerella vaginalis, there is no clinical Symptoms appear.

　　Once the vaginal environment and pH change, such as repeated vaginal douching, drug abuse, etc., Gardnerella and certain anaerobic bacteria will multiply in large numbers. It is reported that when suffering from bacterial vaginosis, Gardnerella bacteria and anaerobic bacteria are mixed in the vagina of the patient, and the number is 100-1000 times higher than that in the vagina of normal healthy women.

　　After sexual intercourse, alkaline semen (pH 7.2-7.5) enters the vagina, which further promotes the growth and reproduction of Gardnerella and anaerobic bacteria, causing the release of a large amount of amine substances, so the vagina emits a putrid fish smell.

　　There are many ways to diagnose bacterial vaginosis. Doctors generally make a diagnosis based on the patient’s symptoms:

　　①Increased vaginal discharge, grayish-yellow, uniform and thin

　　②Vaginal pH greater than 4.5

　　③Positive ammonia test: If the vaginal secretions are mixed with 10% potassium hydroxide solution and smell fishy, ​​it is positive.

　　④Find more clue cells under the microscope. Clue cells are exfoliated vaginal surface cells with jagged edges, which are caused by the adsorption of a large number of bacteria on the edges.

　　The treatment of bacterial vaginosis is currently mostly systemic or local treatment. The commonly used drugs are metronidazole (Metronidazole) or clindamycin, and the cure rate is as high as about 90%. If pregnant women suffer from bacterial vaginosis, they should be treated promptly under the guidance of a doctor, because pregnant women infected with bacterial vaginosis can cause premature birth , premature rupture of membranes, puerperal infection and neonatal infection.

　　Of course, it is very important to prevent bacterial vaginosis. Generally, the following measures can be taken:

　　1. Protect the self-defense function of the vagina and maintain an acidic vaginal environment: Do not use medicines in the vagina at will. When you must take medicines, you should follow the doctor's prescription, otherwise it may make things worse; it is not suitable to do vaginal douching frequently.

　　2. Pay attention to the concept of reproductive health: do not use bathtubs or toilets in public places; do not wear tight and airtight pantyhose; do not have sex with multiple sexual partners.

　　3. Strengthen examinations during pregnancy: Routine examination of vaginal secretions of pregnant women can detect and treat the disease early, but pregnant women should not take medications intravaginally to avoid premature birth.

　　4. Various Uterus For intracavity surgeries, such as inserting and removing IUDs, induced abortion, etc., leucorrhea should be checked to rule out this disease before surgery. If you have already suffered from this disease, surgery should be performed after it is cured to avoid endometritis.

　　In addition, it is best not to have sex before bacterial vaginosis is cured, otherwise the man should wear a condom to avoid aggravating the infection.