Q: If you have already had a hair transplant, once cloning becomes available, will you be able to transplant the cloned hair into the first transplant’s scar on the back of the head? I like to wear my hair short, especially in the summer, and also would feel more comfortable knowing there is no scar in my head. — H.I., Rockville Centre, N.Y.

A: Yes, as long as the scar is not thickened, cloned hair should grow just as normally transplanted hair would and would be a great way to address any residual scarring from the procedure.

Although hair can be transplanted into widened scars, hair does not grow well in thick scars – this would apply to hair restoration procedures performed via traditional means as well as those using cloned hair.