AUSTRALIA — A woman in Australia had to have her thumb amputated because of her habit of biting her nails gave her skin cancer, The Sun reports.<br /><br />Courtney Whithorn, 20, said she developed the bad habit of biting her nails when she was bullied in high school.<br /><br />She said after awhile her thumb nail started to turn black. <br /><br />She decided to hide it from her family and friends, and also used fake nails to hide the condition.<br /><br />Whithorn said she finally decided to visit the doctor, which is when she was diagnosed with acral lentiginous subungual melanoma. It was a malignant melanoma that is a rare form of skin cancer. <br /><br />Whithorn has undergone four surgeries to treat the cancer, with the most recent one resulting in the amputation of her thumb.<br /><br />So if you have a nail-biting habit, you might want to quit now before it's too late.
