The healthy vagina maintains a delicate balance of microorganisms dominated by Lactobacilli species, commonly known as Döderlein's bacilli. These protective bacteria ferment glycogen produced by vaginal epithelial cells, creating lactic acid. This acidic environment, typically ranging between pH 3.8 and 4.2, inhibits the overgrowth of opportunistic pathogens like bacteria and fungi. Disrupting this acidic shield through hormonal shifts, antibiotics, or frequent douching alters the local microclimate and triggers inflammation.
Vaginal inflammation arises when endogenous flora shift or exogenous pathogens invade. Common triggers include:
While symptoms overlap across different types of vaginitis, specific signs help differentiate the underlying cause. Patients frequently report abnormal discharge volume, color, or consistency, accompanied by local burning, itching, dysuria, and dyspareunia. Bacterial vaginosis often presents with a distinct amine odor that intensifies after sexual intercourse due to the interaction of alkaline semen with amine products.
A thorough nursing assessment includes taking a detailed gynecological, sexual, and medication history. During physical examination, the nurse inspects the vulva, perineum, and vaginal mucosa for erythema, edema, and characteristic discharge. Diagnostic confirmation relies on speculum examination, wet mount microscopy (saline and potassium hydroxide preps), and measurement of vaginal pH using specialized indicator paper.
Pharmacological treatment targets the specific causative agent: metronidazole or clindamycin for bacterial vaginosis and trichomoniasis, and azole antifungals for candidiasis. Nursing care focuses on administering medications correctly, monitoring for side effects, and educating the patient on completing the full course of treatment. Instruct patients to wear breathable cotton underwear, avoid scented feminine hygiene products, and abstain from sexual intercourse during active treatment for sexually transmitted etiologies.