Many other factors can produce localized changes.These include wearing tight clothing, being under stress,having a migraine headache, blushing, or having an infected tooth.

• 还有一些因素会引起局部性变化，这些因素包括：穿较紧的衣服、处在一定的压力之下、患有偏头痛、脸红或者牙齿感染等。