A 50-year-old man was hospitalized after collapsing in a bathroom and hitting his head, an incident a neurologist is linking to prolonged sitting on the toilet and subsequent postural hypotension. Dr. Byung-cheon Park, a neurologist, shared the case on TikTok as a warning about the potential for serious medical events occurring during extended bathroom visits.
According to Dr. Park, the patient had been sitting on the toilet for 30 minutes before losing consciousness and falling, resulting in a cerebral hemorrhage and subdural hematoma. While the exact time frame for risk varies depending on individual factors such as hydration levels, autonomic nervous system function and physical condition, the incident highlights a growing concern among medical professionals.
The phenomenon, sometimes referred to as “toilet syncope” or “defecation syncope,” occurs when prolonged sitting on the toilet leads to a drop in blood pressure. Gravity causes blood to pool in the legs, and when an individual stands up quickly, the brain may not receive sufficient blood flow, leading to dizziness or fainting. This can be exacerbated by the vagus nerve being stimulated during bowel movements, further lowering blood pressure and heart rate.
Recent reports indicate an increase in such incidents, potentially linked to the widespread use of smartphones in the bathroom. A study by the Beth Israel Deaconess Medical Center (BIDMC) found that individuals who use smartphones while on the toilet spend significantly more time in the bathroom than those who do not. The Chosun Ilbo recently reported on the rising number of cases, prompting discussion about preventative measures.
Experts recommend avoiding the use of smartphones or other distractions in the bathroom to limit the amount of time spent sitting. The Dong-A Ilbo reported in June 2025 that men are more prone to experiencing syncope during urination, potentially due to the effects of gravity when standing, while women may be more susceptible during defecation, possibly linked to constipation and prolonged straining.
While syncope can occur in anyone, it can be particularly dangerous in the confined space of a bathroom, where a fall can result in serious head injuries. The lack of immediate assistance can also complicate matters. Medical professionals emphasize the importance of being aware of the risks and taking precautions, particularly for individuals with pre-existing health conditions.
The Korean medical community is currently investigating the prevalence of “urination syncope” and “defecation syncope,” with a focus on identifying individuals at higher risk and developing targeted preventative strategies. No official guidance has been released regarding specific time limits for bathroom visits, but awareness campaigns are underway to educate the public about the potential dangers of prolonged sitting.
