Actor Kwon Sang Woo shared his experience undergoing surgery for a liver hemangioma for the first time.

On the 20th, Kwon Sang-woo appeared on the YouTube channel 'Jjan-han hyung Shin Dong Yup' alongside his 'Hitman 2' co-stars Lee Yi-kyung and Hwang Woo Seul-hye.

During the show, Lee Yi-kyung, while taking a hangover remedy, asked Shin Dong-yup, "Brother Shin Dong-yup, are you someone who doesn’t get hangovers?" To which Shin Dong-yup replied, "I don’t."

Kwon Sang-woo then joined the conversation, saying, "I used to vomit when I drank alcohol, but I stopped after I started liking alcohol." He continued, "This is the first time I’m sharing this, but the reason 'Hitman 2' feels like it has two parts is that I discovered I had a liver hemangioma during my annual comprehensive health checkup."

He further explained, "My father passed away early from liver cancer. The doctor told me, 'If the hemangioma grows over 10 cm, we’ll need to perform a major surgery, so remove it once it reaches 6 cm if your schedule allows.' My family was in the US, so I didn’t make a big deal out of it and had the surgery on my own before 'Hitman 2.' The doctor showed me a picture of my liver and said they removed a piece the size of a palm." This revelation surprised everyone.

Kwon Sang-woo added, "The doctor also mentioned that my liver was unusually large, saying, 'Even if we remove 30%, it’s still the size of a normal person’s liver.' I was in the hospital for quite some time, but with my family abroad, I felt very lonely."

He concluded by saying, "I started filming 'Hitman 2' right after recovering." Lee Yi-kyung, who was hearing this story for the first time, praised Kwon Sang-woo, saying, "He must have been exhausted, but he still gave everything he had during filming."

SEE ALSO: Five Korean dramas invited to the Cannes International Series Festival