Baby Kaitlyn, the daughter of 17-year-old Anna "Chickadee" Thomson (Honey Boo Boo's older sister), was born two months ago with a third digit attached to the thumb on her right hand.
"She may or may not ever get surgery to remove one of the thumbs," her grandmother told Radar Online.
"The doctor doesn't want to do anything right now because they don't know the full function of the other thumb or if they're both connected."
"They just have to wait and see. They don't want to do it too early, if they cut one off the other could have paralysis or it could make the other fingers not work, so they don't want to make any rash decisions."
When baby Kaitlyn was born in July, "Mama" was reported to have made fun of her abnormality, but the 33-year-old mum-of-four says that's not true.
"She's just special. I would never make fun of her. That is not right," said Mama. "It makes her more unique and special to us. We don't even pay attention to it. We don't make a big deal about it."