I think it depends why that spot was bald in the first place. I've had this random little bald spot on my middle part, its a circle just a little smaller than a dime, & it's been there for as long as I remember & has never grown back. But I know like 2 people with alopecia, one doesn't have hair at all & it never grows, & the other girl looses her hair often & sometimes it comes back then falls out again. & I think bald spots from growing old don't even grow back, & shaving your head does grow back,
i have a receding hairline and i wana get rid of it instead of hiding it with bangs ._.
I think they make stuff that makes hair grow back liek that though,