During the January 4 broadcast of tvN's 'Life Bar', singer Uhm Jung Hwa opened up on the reason why her comeback was delayed.

She confessed, "I received surgery for thyroid cancer and I lost my voice.  A month had passed and I still couldn't speak.  Later, I found out that my vocal cords were paralyzed."

Uhm Jung Hwa went on, "They say that vocal cord paralysis can impact you for life.  And I began to think, 'What if I can't sing, talk, or act anymore?' It drove me insane."

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She described how she was able to get her voice back after receiving medical treatment and going for physical therapy.  "It was really hard for me back then.  I think my personality changed after that incident.  I became more timid and grateful for every little thing."