Some female friends will find that their vulva is always cracking, but they can't find the reason for this symptom, which makes them very anxious. In fact, this is a disease caused by fungal or bacterial infection. During the attack, the patient is most likely to develop bacterial vaginitis, which will turn into a chronic disease once it occurs. Vulvitis is an inflammation of the vulva caused by invasion of pathogens or various adverse stimuli. It can exist independently, but is more often complicated by vaginitis, urinary tract diseases, anorectal diseases or systemic diseases, or is one of the manifestations in the pathological process of certain vulvar diseases. The clinical manifestations are itching, pain, burning sensation and even swelling, rash, erosion and ulcers of the vulvar skin. 1. Bacterial vaginosis In a normal vagina, lactobacilli that produce hydrogen peroxide are dominant. Bacterial vaginosis is an endogenous mixed infection caused by a decrease in Lactobacillus and an increase in Gardnerella and anaerobic bacteria in the vagina. 2. Candidal vaginitis (1) 80% to 90% of pathogens are Candida albicans, which grow easily in an acidic environment and are diphasic (yeast phase and hyphae phase). (2) The patient's vaginal pH is 4.0-4.7, usually <4.5. (3) Conditionally pathogenic bacteria (yeast phase → mycelium phase). (4) Common causes: pregnancy, diabetes, and large-scale use of immunosuppressants and broad-spectrum antibiotics. (5) Other contributing factors: gastrointestinal Candida, wearing tight synthetic underwear, and obesity. 3. Trichomonas vaginitis (1) Trichomonas vaginalis grows best in a humid environment with a temperature of 25℃ to 40℃ and a pH of 5.2 to 6.6. (2) The vaginal pH changes before and after menstruation, becoming close to neutral after menstruation, making it easier for Trichomonas to reproduce. (3) The vaginal pH of patients is generally between 5.0 and 6.5, and most of them are > 6.0. (4) Parasitic on the vagina, urethra or paraurethral glands, bladder, renal pelvis, male foreskin folds, urethra, and prostate. (5) Often coexists with other vaginitis. 4. Senile vaginitis Postmenopausal women have declining ovarian function, lower estrogen levels, vaginal wall atrophy, thinning mucosa, increased vaginal pH, reduced local resistance, and other pathogenic bacteria may over-multiply or easily invade and cause inflammation, mainly aerobic bacteria. 5. Vaginitis in young girls It is caused by poor development of the vulva, low estrogen levels and foreign objects in the vagina of infants and young children, which trigger infection. Common pathogens include Escherichia coli, Staphylococcus aureus, Streptococcus aureus, etc. |
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