灼热足（感觉脚部痛热）的症状可轻可重。在某些情况下，灼热足可能痛苦到干扰睡眠的程度。某些状况导致的灼热足也可能伴有针刺感（感觉异常）或麻木感，或两者兼有。
灼热足也可以称为脚部刺痛或感觉异常。
虽然疲劳或皮肤感染也能导致暂时性的足灼热或发炎，但灼热足更多是神经损伤（周围神经病变）的体征。神经损伤有许多不同的原因，包括糖尿病、长期饮酒、接触某些毒素、维生素 B 缺乏症或艾滋病毒感染。
如果出现以下情况，请寻求急救医疗护理：
- 脚部灼热感骤至，尤其如果您可能曾接触过某种类型的毒素
- 脚上的开放伤口似乎感染，尤其如果您患有糖尿病
如果您出现以下症状，请安排就医：
- 即便自我护理几周，仍持续出现灼热足
- 注意到症状正越来越强烈和痛苦
- 灼热感已经开始向上扩散入腿部
- 脚趾或脚开始失去知觉
如果您的灼热足持续存在或者没有明显原因，则医生就需要做检查，以确定罪魁祸首是否是导致周围神经病变的多种状况之一。
显示参考文献
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Original article: https://www.mayoclinic.org/zh-hans/symptoms/burning-feet/basics/when-to-see-doctor/sym-20050809