Years of extensions, weaves and dye jobs have finally taken their toll onLindsay Lohan ... as her exposed scalp made an impromptu appearance through her scraggly ginger locks when she picked up dinner at -- the appropriately named -- E. Baldi restaurant in Beverly Hills on Thursday.

If this keeps up, it won't be long before the rehabbed 26-year-old wigs out again.

From TMZ.com

Thumbnail via TMZ.com