Vulvovaginal candidiasis, commonly known as a yeast infection, is an extremely frequent presentation among women attending reproductive health clinics in Nigeria. It is primarily an opportunistic mucosal infection rather than a classic sexually transmitted infection, though sexual activity can sometimes trigger symptoms. Midwives must recognize that most women will experience at least one episode during their lifetime. The normal vaginal ecosystem relies heavily on Lactobacilli, which maintain an acidic pH to keep opportunistic organisms in check. When this delicate balance is disrupted, Candida albicans overgrows, leading to characteristic inflammation and discomfort.
Several clinical and environmental factors trigger the transition of Candida from a harmless commensal organism to a pathogenic state. Midwives should screen for these triggers during history taking:
Patients with vulvovaginal candidiasis present with distinct clinical markers that help differentiate it from bacterial vaginosis or trichomoniasis. The cardinal symptom is intense vulvar pruritus, often accompanied by burning and soreness. Vaginal discharge is classically described as thick, white, and resembling cottage cheese, though it can sometimes be thin and watery. Clinical examination typically reveals marked erythema and edema of the labia and vulvar skin, sometimes with satellite pustules. Importantly, the discharge of candidiasis is typically odorless, unlike the fishy odor associated with bacterial vaginosis.
While clinical presentation strongly suggests candidiasis, confirmation relies on physical assessment and simple laboratory tests. Midwives perform a speculum examination to inspect the vaginal walls and cervix. A high vaginal swab is collected for wet mount preparation. Mixing the vaginal discharge with a drop of 10% potassium hydroxide (KOH) dissolves human cells and bacteria while leaving yeast hyphae and spores intact, making them visible under a microscope. Vaginal pH measurement is also useful; candidiasis typically presents with a normal acidic pH between 4.0 and 4.5, helping rule out bacterial vaginosis or trichomoniasis where pH is elevated above 4.5.
Management focuses on relieving symptoms and eradicating the fungal overgrowth using antifungal medications. These are available in topical and oral formulations. Topical azoles, such as clotrimazole pessaries and creams, are highly effective and safe for self-administration. Oral fluconazole as a single dose is equally effective for non-pregnant women. Midwives must explain that topical oil-based creams can weaken latex condoms and diaphragms. For complicated cases, such as recurrent candidiasis or infections caused by non-albicans species, longer courses of treatment or maintenance antifungal therapy may be required.
Candidiasis is exceptionally common during pregnancy due to elevated estrogen levels and increased vaginal glycogen. Midwives managing pregnant clients must adjust treatment protocols carefully. Topical azole therapies used for seven days are the standard safe choice during pregnancy. Oral azoles, particularly fluconazole, are generally avoided during the first trimester due to theoretical concerns regarding teratogenicity with high doses. Symptomatic treatment is vital because untreated heavy colonization can occasionally contribute to neonatal thrush during delivery.
Preventing recurrent episodes requires practical lifestyle guidance from the midwife. Patients should be advised to wear breathable cotton underwear, avoid tight synthetic trousers, and change out of wet swimsuits or sweaty workout clothes promptly. Douching and the use of scented feminine hygiene sprays or perfumed soaps disrupt the natural vaginal flora and should be strongly discouraged. Midwives should also counsel patients on managing predisposing conditions like blood sugar control in diabetes, which plays a major role in stopping repeated infections.