Former After School member Lee Joo-yeon recently shared a personal health detail that shed light on the physical demands of her time as a K-pop idol. During an appearance on the MBC variety show “I Live Alone,” she revealed that she had received injections to reduce sweating in her palms to cope with the rigors of stage performances.
The disclosure came as she reflected on the challenges of being part of the popular girl group, noting that excessive hand sweating made it difficult to grip props like drumsticks during performances. Her candid remarks brought attention to a condition known as palmar hyperhidrosis, a medical issue that affects many individuals but is rarely discussed in the entertainment industry.
Lee Joo-yeon, who debuted with After School in 2009, explained that the injections were administered to help her manage symptoms during intense rehearsals and live shows. She emphasized that the decision was made out of necessity to maintain performance quality, especially during activities requiring precise hand movements.
Her comments were made during a segment where cast members discussed personal habits and past experiences. The moment stood out not only for its honesty but also for highlighting the unseen physical toll that idol activities can take, even beyond the visible aspects of dance and vocals.
According to medical sources, palmar hyperhidrosis is characterized by overactive sweat glands in the hands, often triggered by stress or heat, and can interfere with daily tasks such as writing, using electronic devices, or playing instruments. Treatments range from topical antiperspirants to minimally invasive procedures like botulinum toxin injections, which temporarily block nerve signals responsible for sweat production.
The Mayo Clinic notes that while the condition is not dangerous, it can significantly impact quality of life, leading to social anxiety or avoidance of certain activities. In Lee Joo-yeon’s case, the injections were used specifically to address performance-related difficulties, allowing her to participate fully in demanding routines without the distraction of slippery grips.
Her revelation resonated with fans and viewers who appreciated her transparency about the lengths idols may go to in order to deliver polished performances. It also sparked conversations about the importance of recognizing and treating hyperhidrosis, which affects an estimated 3% of the population globally, according to the International Hyperhidrosis Society.
Lee Joo-yeon has since transitioned into acting, appearing in various dramas and variety shows. She continues to be active in the entertainment industry, often sharing insights into her life and career with openness and humor.
As of her appearance on “I Live Alone” in April 2026, she confirmed that she no longer requires the injections, noting that her symptoms have changed over time. She encouraged others experiencing similar issues to consult medical professionals rather than suffer in silence.
Her story serves as a reminder that behind the glamour of stage performances, artists often manage personal health challenges with discretion and resilience. By speaking openly, Lee Joo-yeon contributed to greater awareness of a condition that, while common, remains under-discussed in public discourse.
For those seeking more information about palmar hyperhidrosis and available treatment options, reputable medical institutions such as the American Academy of Dermatology provide detailed guidance on diagnosis and management.
Moving forward, Lee Joo-yeon continues to balance her work in acting and media appearances, maintaining a presence in South Korea’s entertainment landscape while advocating for honest conversations about health and well-being in the industry.
Her experience underscores the value of listening to artists’ personal accounts—not just for entertainment, but for the insights they offer into the realities of life in the spotlight.