Several sexually transmitted infections can cause nasal congestion, discharge, or structural damage to the nose, though these symptoms are rarely the first thing people associate with STDs. Syphilis is the most significant culprit, capable of producing everything from a runny nose to the destruction of nasal bone and cartilage depending on the stage of infection. HIV, herpes simplex virus, mpox, and even HPV can also affect the nasal passages in distinct ways. Because nasal symptoms overlap so heavily with colds and allergies, STD-related causes are easy to miss and worth understanding.
Syphilis Is the STD Most Closely Linked to Nasal Symptoms
Syphilis has a long, well-documented history of affecting the nose, and it does so at more than one stage of the disease. During secondary syphilis, which typically develops weeks to months after the initial infection, patients can experience nasal secretion alongside headache, sore throat, and body aches.1PubMed Central. Oral findings in secondary syphilis These symptoms feel a lot like a bad cold or the flu, which is exactly why secondary syphilis has earned the nickname “the great imitator.” A person in this stage may also have a rash, swollen lymph nodes, or mouth sores, but none of those are guaranteed to appear alongside the nasal symptoms, making it easy to dismiss what is happening as a seasonal illness.
The real damage to the nose comes in the tertiary stage, which can develop years or even decades after the original infection if syphilis goes untreated. Tertiary syphilis produces some of the most dramatic nasal manifestations of any infectious disease. Rubbery masses of inflamed tissue called gummas form inside the nose, most often on the nasal septum, particularly where cartilage meets bone. These masses erode into surrounding tissue, destroying cartilage and bone from the inside out. The septum perforates, the bony framework collapses, and the result is a characteristic “saddle nose” deformity where the bridge of the nose sinks inward.2Archives of Otolaryngology and Rhinology. Tertiary Nasal Syphilis: Rare But Still a Reality Before the collapse becomes visible from the outside, the person experiences progressive nasal obstruction, crusting, foul-smelling discharge, and sometimes nosebleeds as the tissue breaks down internally.3International Journal of Otorhinolaryngology and Head and Neck Surgery. A rare case of tertiary nasal syphilis: an unusual ear, nose, and throat manifestation of a rare disease
Tertiary nasal syphilis is rare today thanks to antibiotics, but it still occurs, particularly in people who were never diagnosed or who fell out of treatment. Case reports continue to appear in medical literature, and ear, nose, and throat specialists in some regions still encounter it. Historically, nasal syphilis was common enough that specialists considered it a routine part of their practice.4PubMed Central. Syphilis as Seen by the Eye, Ear, Nose and Throat Specialist The fact that syphilis rates have been rising in many countries over the past two decades means clinicians are being reminded not to treat this as purely a historical curiosity.
HIV and Persistent Sinusitis
People living with HIV, especially those whose immune systems are significantly weakened, are prone to sinusitis that is unusually stubborn and difficult to treat. A stuffy nose from sinusitis in this context is not a one-off event but tends to become chronic, involving multiple sinuses at once. Research has shown that patients with very low immune cell counts are particularly susceptible to sinus disease that responds poorly to standard antibiotic courses and frequently recurs.5PubMed. Sinusitis in HIV-infected patients: a clinical and radiographic review
The congestion, facial pressure, and thick nasal discharge of HIV-related sinusitis can look identical to ordinary sinusitis from a cold. The difference is persistence. Where a healthy person’s sinus infection clears in a week or two with treatment, HIV-related sinusitis drags on or keeps coming back. The range of bacteria causing the infection can also be unusual, including organisms that rarely trouble people with intact immune systems. For someone who is not yet aware of their HIV status, recurring sinus infections that never quite resolve can be one of the early clues that something deeper is going on with their immune function.
Herpes Simplex Virus Inside the Nose
Most people associate herpes simplex virus with cold sores on the lips or genital lesions, but HSV can also show up inside or on the nose. Nasal herpes can appear as painful blisters on the outer surface of the nose or as lesions inside the nasal passages, sometimes on the inferior turbinates, the bony structures inside the nose that warm and humidify air.6Cureus. Nasal Herpes Simplex With Infraorbital Neuralgia: A Rare Presentation These internal lesions can cause swelling, crusting, and a feeling of blockage on one side.
In people with compromised immune systems, intranasal herpes can be more aggressive, occasionally mimicking the appearance of invasive fungal infections, which are a much more serious condition. This means a healthcare provider who sees an unusual-looking nasal mass in an immunocompromised patient needs to consider HSV as a possible cause. For the average person, nasal herpes is uncommon and usually self-limiting, resolving in a similar timeframe to oral cold sores. But because lesions inside the nose are hard to see without a scope, people may experience what feels like unexplained nasal stuffiness, soreness, or crusting and not realize what is causing it.
Mpox and Nasal Congestion
During the 2022 mpox outbreak, researchers documented a range of mucosal symptoms beyond the skin lesions that dominated headlines. In a large multicenter study from Spain involving over a thousand cases, nasal congestion was reported in roughly 1.6% of patients, and oral ulcers appeared in nearly 7%.7Heliyon. Determinants of hospital admission and sequelae in the early 2022 Mpox outbreak in Spain: A multicenter retrospective study (CEME-22) While nasal congestion was not among the most common symptoms, its presence in an active outbreak highlights that mpox can involve the upper respiratory tract.
Mpox spreads primarily through close physical contact, including sexual contact, which is why it is often discussed alongside STDs even though it can also spread through non-sexual routes. A person with mpox-related nasal congestion would typically also have other more recognizable symptoms like skin lesions, fever, or swollen lymph nodes. Nasal congestion alone would not point toward mpox, but when it appears alongside those hallmark signs during an active outbreak, it makes more sense in context.
HPV and Growths in the Nasal Passages
Human papillomavirus is best known for causing genital warts and cervical cancer, but it can also lead to growths inside the nose and sinuses. These growths, called sinonasal papillomas, are benign tumors that develop on the lining of the nasal cavity or paranasal sinuses. Across studies dating back to the 1980s, about a third of sinonasal papillomas tested positive for HPV, and roughly a fifth of sinonasal carcinomas did as well.8PubMed Central. HPV infections in benign and malignant sinonasal lesions The HPV types involved are often HPV 6, 11, and 16, with HPV 11 being especially common in inverted papillomas, a particular type of nasal growth that pushes inward into the tissue rather than growing outward.9PubMed. Detection of human papillomavirus (HPV) structural antigens and DNA types in inverted papillomas and squamous cell carcinomas of the nasal cavities and paranasal sinuses
These papillomas cause progressive one-sided nasal obstruction. A person might notice gradually worsening stuffiness on one side that does not respond to decongestants, sometimes accompanied by nosebleeds or a change in their sense of smell. The connection to HPV is well established, with multiple studies finding the virus in a substantial percentage of these lesions, while other viruses like Epstein-Barr have not shown a meaningful link.10PubMed Central. Etiology of sinonasal inverted papilloma: A narrative review
It is worth noting that the pathway from HPV infection to a nasal papilloma is not well understood, and having genital HPV does not mean you will develop nasal growths. The virus may reach the nasal mucosa through hand-to-nose contact after touching an infected area, or it may reflect an independent infection. Regardless of how it gets there, anyone with persistent one-sided nasal blockage that will not clear should have it evaluated, because inverted papillomas, while usually benign, can recur after removal and occasionally transform into cancer.
Pharyngeal Gonorrhea and Upper Airway Symptoms
Gonorrhea is not typically associated with nasal symptoms specifically, but pharyngeal gonorrhea, an infection in the throat acquired through oral sex, can produce upper airway discomfort that some people describe broadly as head congestion. A study tracking the natural course of throat gonorrhea in men found that about a quarter of those infected reported a sore throat during the first two weeks of infection.11Clinical Infectious Diseases. The Duration of Pharyngeal Gonorrhea: A Natural History Study The majority of cases, however, produced no symptoms at all, which is the central problem with pharyngeal gonorrhea: it tends to be silent.
Because the throat and nasal passages are connected, inflammation in one area can create a sense of fullness or drainage in the other. A person with pharyngeal gonorrhea might notice post-nasal drip, mild throat irritation, or a general feeling of congestion without having a classic stuffy nose. The quiet nature of throat gonorrhea means it often goes undiagnosed for weeks or months, during which the person can pass the infection to partners. Standard urine-based gonorrhea tests will miss a pharyngeal infection entirely; a throat swab is needed.
Why These Symptoms Get Overlooked
The common thread across all of these infections is that nasal symptoms are rarely the primary or most recognizable feature. A person with secondary syphilis is more likely to notice a rash. Someone with HIV may first be alerted by weight loss or recurrent fevers. A person with mpox will probably focus on their skin lesions. The nasal component tends to be filed under “I must be coming down with something” and treated with over-the-counter remedies that provide temporary relief without addressing the underlying infection.
This is compounded by the fact that clinicians do not routinely ask about sexual health when a patient comes in with a stuffy nose, and patients rarely volunteer that information when their chief complaint feels like a cold. The practical takeaway is not that every stuffy nose warrants STD testing, but rather that context matters. A stuffy nose that coincides with a new rash, an unexplained sore throat, unusual genital symptoms, or recent sexual exposure to someone with a known infection is worth mentioning to a healthcare provider with the full picture, not just the nasal symptoms in isolation.
Congenital Syphilis and Newborn Nasal Symptoms
One of the more striking connections between STDs and nasal symptoms shows up not in adults but in newborns. Congenital syphilis, passed from a pregnant person to their baby, can cause a condition historically called “snuffles” in the first weeks of life. The baby develops persistent, sometimes bloody nasal discharge that does not respond to typical treatments for infant congestion. The nasal secretions are highly infectious, containing active syphilis bacteria.
Snuffles was a well-recognized sign of congenital syphilis in the pre-antibiotic era and played a significant role in how the disease was identified in infants. It remains a clinical finding today, though less commonly seen in settings where prenatal syphilis screening is routine. In places where screening has gaps, or where syphilis rates are rising sharply, clinicians are once again encountering infants with this presentation. The saddle nose deformity associated with late-stage syphilis can also appear in children with untreated congenital syphilis as the growing nasal cartilage and bone are damaged over time, echoing the same destructive process seen in adults with tertiary disease.
When One-Sided Symptoms Deserve Extra Attention
A useful rule of thumb for distinguishing STD-related nasal problems from ordinary colds or allergies is to pay attention to symmetry and duration. A cold typically affects both nostrils, peaks within a few days, and resolves within a week or two. Allergies tend to be bilateral, seasonal or tied to identifiable triggers, and responsive to antihistamines. Many STD-related nasal problems, by contrast, are one-sided, progressive, or weirdly persistent.
An HPV-driven nasal papilloma almost always blocks one side. A gumma from tertiary syphilis often starts on one part of the septum. A herpes lesion inside the nose creates localized swelling on whatever side it occurs. HIV-related sinusitis can be bilateral, but its hallmark is that it will not go away and keeps returning despite treatment. Mpox-related nasal congestion would appear alongside other mpox symptoms, making the broader context the main clue rather than the nasal symptom itself.
None of these patterns are definitive on their own. Plenty of non-STD conditions cause one-sided nasal obstruction, including deviated septums, nasal polyps, and foreign bodies (especially in children). But when one-sided or unusually stubborn nasal symptoms appear in someone with risk factors for STDs, or alongside other unexplained symptoms, a broader evaluation that includes sexual health screening can catch something that a simple course of decongestants would miss. This is especially true for syphilis, which is straightforward to diagnose with a blood test and curable with antibiotics when caught before it reaches the destructive tertiary stage.