Can an endoscopic or open surgery brow lift actually lead to hair loss?

Probably not, but...: All adults over a certain age are losing hair (some sooner than others). Some even have premature balding starting in their 20's. So, no matter what surgery an older adult does, he will likely have less hair this month than this month a year ago. He'll probably have less hair after any surgery than before surgery... Time doesn't stop for anyone.

Yes: The hair loss can be near the incisions, or the hair loss can be in the temple region, related to undermining & elevation of the tissues. This second type is more common in smokers. Practically speaking, though, this problem is uncommon when the tissues are handled gently.

Browlift: There are incision techniques to minimize hairless. However, hairloss is a risk when incisions are made in the hairline.