In a case that has sent shockwaves through medical communities and the general public alike, a 61-year-old woman from Guangdong Province, China, recently underwent emergency surgery to remove a living, eight-centimeter-long parasite from her brain. The incident, widely reported by outlets such as the South China Morning Post and Chosun Ilbo, has reignited debate over the dangers of traditional folk remedies and the consumption of wild animals—a topic that’s become increasingly relevant in recent years.
The woman, whose ordeal began several years ago, suffered from persistent chills and convulsions. According to Chosun Ilbo, her symptoms were initially attributed to the aftereffects of lumbar spine surgery she had undergone in 2021. She experienced numbness in her limbs and scalp, and even during the sweltering heat of June 2025, she continued to shiver uncontrollably. Concerned, she sought medical help and was diagnosed with a cerebral infarction, spending a week in the hospital before being discharged. But her symptoms did not abate.
Things took a dramatic turn in December 2025 when she suffered severe convulsions, foaming at the mouth and experiencing facial distortion. Despite another hospital stay, doctors struggled to pinpoint the cause, and the frequency of her convulsions only increased. Desperate for answers, she turned to Guangdong 39 Brain Hospital, where cutting-edge imaging finally revealed a critical clue: a lesion in her brain that was not stationary but moving, leaving behind what doctors described as ‘tunnel signs’—tracks left by something burrowing through brain tissue.
It was a chilling discovery. The medical team, led by Dr. Lu Ming, quickly decided to operate. What they found was astonishing: a living larva, approximately eight centimeters long, wriggling inside her brain. Laboratory analysis identified the parasite as the larval form of Spirometra mansoni, commonly known as sparganum. According to SCMP, such infections are rare but extremely serious, especially when the brain is involved.
How did such a parasite end up in her brain? The answer, doctors believe, lies in her childhood and the folk remedies practiced in her rural village. As the patient recounted to SCMP, "When I was a teenager suffering from tooth decay, my mother caught a wild frog and put its hind leg into the cavity in my tooth." In her village, it was widely believed that frog legs could extract ‘tooth worms’—a belief with no scientific basis. The woman went on to say, "Even after that, my toothache didn’t improve, so I also ate snake meat and regularly drank water from mountain springs."
These practices, while rooted in local tradition, carried hidden dangers. Sparganum larvae are known to inhabit the flesh and skin of frogs and snakes. Infection can occur not only by eating these animals raw, but also by placing their flesh on wounds or in body cavities—a common method in various folk remedies across East Asia. As Chosun Ilbo notes, the larvae can travel throughout the human body, causing inflammation and neurological symptoms that depend on where they settle. In most cases, they’re found in subcutaneous or muscle tissue, leading to pain, swelling, and itching. But when the brain is involved, as in this case, the symptoms can include vision loss, headaches, convulsions, paralysis, memory loss, changes in consciousness, and speech disorders.
Drug treatment for sparganosis, the disease caused by Spirometra larvae, is limited, and recurrence is common. Surgical removal of the larvae remains the most effective treatment, though it carries its own risks. Dr. Lu Ming, who performed the surgery, issued a stark warning in SCMP: "There is a very high chance that wild amphibians and reptiles such as frogs or snakes harbor sparganum larvae. Following baseless folk remedies or consuming uncooked wild animals is extremely dangerous."
This case is not an isolated incident. In a separate but equally alarming story reported by Munhwa Ilbo, an 80-year-old woman in Hangzhou, China, was hospitalized after swallowing eight live frogs over two days, believing it would cure her chronic back pain. She, too, was diagnosed with sparganum infection and underwent two weeks of treatment before being discharged. The woman explained, "I had been suffering from a herniated disc for a long time, and a friend told me that swallowing live frogs would relieve the pain." Her case underscores how deeply entrenched some of these folk beliefs remain, especially in rural communities.
Medical experts stress that the risks posed by such practices are not limited to parasites like sparganum. Wild animals can carry a host of other pathogens, some of which may not even be fully understood yet. The consumption of raw or undercooked animal products, or their application as home remedies, exposes individuals to infections that can be life-threatening or cause permanent disability. In the words of Dr. Lu Ming, "It is extremely dangerous to follow unproven folk remedies or to consume uncooked wild animals."
Despite these warnings, folk medicine remains a significant part of healthcare for many people in rural China and other parts of Asia. Access to modern medical facilities is sometimes limited, and traditional beliefs are often passed down through generations. While some folk remedies may be harmless or even beneficial, others—like the use of raw frog legs for toothache—can have tragic consequences.
Cases like these serve as a stark reminder of the importance of public health education and the need for accessible, evidence-based medical care. As China continues to modernize its healthcare system, bridging the gap between traditional practices and modern medicine will be crucial. For now, the story of the Guangdong woman and her harrowing encounter with a brain-dwelling parasite stands as both a cautionary tale and a call to action for doctors, policymakers, and the public alike.
The woman, now recovering from her ordeal, is fortunate to have survived an infection that could have easily ended her life or left her with permanent neurological damage. Her experience—and that of others like her—highlights the urgent need for awareness about the dangers of consuming or using wild animals in unproven remedies. Sometimes, the oldest traditions are the hardest to break, but as these stories show, the stakes couldn’t be higher.