Bacterial Vaginosis in Spain: How to Get Treatment as a Tourist

That thin, greyish discharge with a noticeable fishy smell — you know something is off, and dealing with it while travelling in Spain feels isolating. Bacterial vaginosis is the most common vaginal condition in women of reproductive age, and it responds well to treatment once you have the right medication. This guide walks you through everything you need to know about bacterial vaginosis treatment in Spain, from what is actually happening inside your body to exactly how to get a prescription filled at a local farmacia.

What's Happening in Your Body

Bacterial vaginosis — often shortened to BV — is not a traditional infection caused by a single invading germ. It is a shift in the balance of bacteria that naturally live inside the vagina. Under healthy conditions, the vaginal microbiome is dominated by Lactobacillus species. These bacteria produce lactic acid and hydrogen peroxide, which keep the vaginal pH between 3.8 and 4.5 — acidic enough to suppress the growth of other organisms.^[1]

When that balance tips, the Lactobacillus population drops and a mixed community of anaerobic bacteria — organisms that thrive without oxygen — takes over. The most commonly involved species is Gardnerella vaginalis, but BV typically involves several types of bacteria working together and forming what scientists call a biofilm: a sticky layer of microorganisms that coats the vaginal lining and is difficult for the immune system to clear on its own.^[2] The vaginal pH rises above 4.5, the protective acid barrier weakens, and the characteristic discharge and odour begin. The smell comes from volatile amines — chemical compounds produced as these anaerobic bacteria break down proteins in vaginal fluid.

The shift happens like a change in the weather — multiple factors combine, and suddenly the internal environment favours the wrong set of organisms. New sexual partners, douching, scented intimate products, hormonal fluctuations, and even stress can all contribute. Travel to a hot climate like Spain compounds the problem. Hours spent in warm, damp swimwear create favourable conditions for anaerobic bacteria, while changes in routine, diet, and sleep patterns put additional strain on your immune regulation.^[3]

One fact worth understanding: BV is not a sexually transmitted infection, even though sexual activity is one of the most well-documented risk factors. Having a new partner or multiple partners changes the bacterial composition introduced to the vagina, which can destabilise the Lactobacillus balance. But BV has also been documented in women who have never had sex, which confirms that it is fundamentally a microbiome imbalance rather than a transmitted disease.^[1]

What You're Feeling (and What It Means)

The most recognisable symptom of bacterial vaginosis is a thin, watery, greyish-white discharge with a fishy odour that intensifies after sex or after washing with soap. The alkaline nature of semen and soap raises vaginal pH further, which releases more of those volatile amine compounds and makes the smell more pronounced. Many women first notice it in the shower or immediately after intercourse.^[1]

Unlike a yeast infection, BV rarely causes severe itching or thick, clumpy discharge. The irritation tends to be milder — a general sense of discomfort, perhaps some light burning during urination. In fact, up to half of women with BV have no noticeable symptoms at all. Their condition is only detected during a routine examination. If you are experiencing symptoms, though, you are dealing with a case significant enough to benefit from treatment — and the sooner you begin, the sooner the discharge and odour resolve.^[4]

BV is also worth treating even when symptoms are mild because of what it does silently. Untreated bacterial vaginosis increases susceptibility to sexually transmitted infections — including chlamydia, gonorrhoea, and HIV — by disrupting the vaginal lining's natural defence barrier. In pregnant women, untreated BV is associated with a higher risk of preterm birth and low birth weight.^[2] These are not reasons to panic, but they are solid reasons not to postpone bacterial vaginosis treatment while you wait for things to resolve on their own.

The Medications a Doctor Will Prescribe

Bacterial vaginosis is treated with antibiotics that target anaerobic bacteria — the specific organisms responsible for the imbalance. All effective treatments require a prescription in Spain. Here are the three options a doctor may recommend, and how each one works.

What You Can Get at the Pharmacy Without a Prescription

Unlike yeast infections, bacterial vaginosis cannot be treated with anything available over the counter in Spain. The antibiotics that treat BV — metronidazole and clindamycin — are strictly prescription-only (con receta) at every farmacia in the country. No amount of explaining your symptoms to the pharmacist will change this; it is a legal requirement, and Spanish pharmacists follow it consistently. What the pharmacy can offer is supportive products while you arrange a prescription. Many Spanish farmacias stock lactic acid vaginal gels — brands like Canesbalance or Gynofit — which help restore vaginal pH toward the acidic range and can reduce the fishy odour temporarily. These are not a cure and do not replace antibiotics, but they can provide comfort in the interim. You may also find probiotic capsules marketed for vaginal health, containing Lactobacillus strains. Some evidence suggests these may help prevent recurrence when used alongside antibiotics, though they are not effective as a standalone treatment for active BV.^[6] When speaking to the pharmacist, the phrase vaginosis bacteriana describes the condition, and gel vaginal de ácido láctico will point them toward the supportive products. Expect to pay between €8 and €15 for these items.

When You Should See a Doctor in Person

Most cases of bacterial vaginosis are uncomplicated and respond well to a standard course of antibiotics prescribed through an online or in-person consultation. However, certain situations call for an in-person examination to rule out other conditions or to manage complications.

If you are unsure whether your symptoms are BV or something else — such as a yeast infection, trichomoniasis, or a sexually transmitted infection like chlamydia — an online consultation can still be a good starting point. A doctor can assess your symptoms, medical history, and risk factors to determine whether empirical treatment is appropriate or whether you need in-person testing. BV is often diagnosed based on clinical criteria (the so-called Amsel criteria: thin discharge, fishy odour, elevated pH, and the presence of clue cells under a microscope), but in many straightforward cases, a detailed symptom description is enough for a physician to make a confident clinical judgement.^[1]

How to Get Bacterial Vaginosis Treatment in Spain

Bacterial vaginosis responds best to prompt treatment. Every day of delay allows the anaerobic bacterial biofilm to consolidate further along the vaginal lining, which makes the condition more entrenched and increases the risk of recurrence even after successful antibiotic therapy. Starting metronidazole early — ideally within the first few days of symptom onset — gives you the highest chance of a single course resolving the problem completely.^[4]

For tourists and visitors in Spain, the barrier is not the treatment itself but getting the prescription. Spanish farmacias will not sell metronidazole or clindamycin without a valid receta médica. Walk-in clinics can involve hours of waiting, private consultations may cost €80–150 before the medication, and explaining an intimate condition through a language barrier adds a layer of discomfort that most people would rather avoid. These are real obstacles when you are already feeling unwell and far from home.

PrescribeMe was designed specifically for this situation. You complete a short medical questionnaire describing your symptoms and medical history, a licensed Spanish physician reviews your case, and — if bacterial vaginosis treatment is appropriate — issues a receta electrónica privada (a valid private electronic prescription). That prescription is sent directly to your phone and is accepted at any farmacia in Spain. The entire process is in English, requires no video call, and most patients receive their prescription within hours. You then walk into the nearest pharmacy, show the prescription, and pick up your medication. Generic metronidazole tablets typically cost between €5 and €12 — far less than the consultation fee at most private clinics.