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Grading scale for evaluation of skin wrinkles.
| Grade | Description |
|---|---|
| 0 | Smooth skin without any wrinkles; fine striations running down the length of the body |
| 1 | Fine striations |
| 2 | A few shallow wrinkles; disappearance of all fine striations |
| 3 | Shallow wrinkles across the dorsal skin |
| 4 | Deep and coarse wrinkles with laxity |
| 5 | Increased wrinkle depth |
| 6 | Surface marked by severe wrinkles; development of lesions |
