Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Distribution of pain sites
| Pain sites | Number of sites | ||
|---|---|---|---|
| All | Mainland China | Hong Kong | |
| Head | 2 | 0 | 2 |
| Neck and shoulder | 10 | 2 | 8 |
| Upper limb | 8 | 1 | 7 |
| Upper back | 12 | 8 | 4 |
| Lower back | 10 | 8 | 2 |
| Chest | 8 | 5 | 3 |
| Upper abdomen | 7 | 5 | 2 |
| Lower abdomen | 8 | 5 | 3 |
| Lower limb | 20 | 11 | 9 |
| Other | 5 | 2 | 3 |
