Overview
- A PLOS One study at Beth Israel Deaconess surveyed 125 adults undergoing colonoscopy and found a 46% higher measured prevalence of hemorrhoids among smartphone users on the toilet after adjusting for key confounders.
- Two-thirds of participants reported bringing a phone into the bathroom, and 37% of phone users sat longer than five minutes compared with 7% of non-users.
- Clinicians note that lingering on a toilet seat can increase pressure on hemorrhoidal cushions, and this study did not detect an association with straining in its sample.
- The authors highlight limits including a small, older-skewing cohort, reliance on self-reported toilet habits, and a cross-sectional design that cannot prove causation.
- Practical guidance includes leaving phones outside the bathroom, keeping toilet time brief, and improving fiber intake and hydration, with calls for larger longitudinal research.