Chinese Man Hospitalized with Fungal Lung Infection After Repeatedly Smelling His Own Socks

A seemingly harmless habit turned into a serious medical ordeal for a man in Chongqing, China, after his daily routine of sniffing his dirty socks led to a rare fungal lung infection. Identified in local media as Li Qi, the office worker began experiencing severe coughing fits, sleepless nights, and bloodshot eyes, prompting him to seek medical attention after over-the-counter remedies failed to provide relief.

Doctors at the Southwest Hospital of the Army Medical University conducted CT and MRI scans, which revealed signs of inflammation and infection in the lower right lung. A subsequent bronchoscopy confirmed the diagnosis: Li Qi was suffering from aspergillosis, a fungal lung infection caused by the Aspergillus fungus. This mould is commonly found in damp environments-including compost, rotting leaves, and, as in this case, worn socks.

According to Dr. Liang Peiqiang, chief physician in the hospital’s Department of Respiratory Medicine, Li Qi’s peculiar habit of sniffing his socks after a long day likely exposed him to a high load of fungal spores. Tests on his socks confirmed the presence of the same fungal strain responsible for his illness. The warm, humid, and poorly ventilated environment inside shoes and socks makes them an ideal breeding ground for fungi.

Experts emphasize that while most healthy individuals inhale Aspergillus spores daily without consequence, those with weakened immune systems or pre-existing lung conditions are at higher risk for serious infections. In Li Qi’s case, his sock-sniffing habit was likely a contributing factor, especially if his immune defenses were compromised.

Aspergillosis can range from mild allergic reactions to life-threatening invasive infections. Symptoms often mimic those of tuberculosis, making diagnosis challenging. Persistent cough, insomnia, and bloodshot eyes are common, and in severe cases, patients may cough up mucus plugs or blood. Timely treatment with antifungal medications, such as voriconazole, is crucial for recovery.

Li Qi responded well to treatment and was discharged from the hospital. However, doctors warn that immunocompromised individuals-including those with diabetes, cancer, or chronic lung conditions-should avoid exposure to damp environments and maintain good hygiene to reduce the risk of fungal infections.

This is not the first such case reported in China. In 2018, another man was hospitalized with a similar infection after developing an “addiction” to smelling his used socks.

“Smelling dirty socks alone is unlikely to cause aspergillosis in a healthy individual. However, the habit may introduce a high load of fungal spores into the nasal and respiratory passages, especially if the socks are damp and kept in poorly ventilated environments,” explained Dr. Vikas Mittal, Director and Pulmonologist at CK Birla Hospital, Delhi.

Prevention Tips

• Avoid prolonged wearing of shoes and socks in humid conditions.

• Wash socks regularly and ensure they dry completely.

• Maintain good ventilation at home.

• Immunocompromised individuals should avoid damp laundry and poorly ventilated spaces.

Disclaimer: This article is based on information from public domain sources and expert commentary. It is not a substitute for professional medical advice. Always consult a healthcare practitioner for concerns about your health or before adopting any new habits.