| 摘要: |
| [目的] 研究以青年大学生群体为研究对象，纵向追踪同一批在初春（3月初）、初夏（6月初）、盛夏（8月初）3个时间节点的舌象参数动态变化，旨在揭示舌色季节性波动规律，为中医舌诊的客观化研究及季节性健康干预提供依据。[方法] 研究纳入约1 000名18~22岁健康大学生，采用舌诊仪采集舌象数据，通过RGB、HSV、Lab色彩模型参数解析舌色及变化情况。采用SPSS 21.0进行数据分析：对符合正态分布的参数进行单因素方差分析，非正态分布数据则使用非参数检验，以评估不同季节舌色参数的统计学差异。[结果] 研究发现：1）舌色参数呈现显著季节性差异，其中蓝色分量（B值）与饱和度（S值）在夏季波动尤为显著（P<0.05）；2）中医舌色分类中，淡红舌占比随季节变化呈规律性波动，初春（72.6%）>初夏（68.1%）>盛夏（65.4%），可能与夏季代谢率升高及湿热环境相关。[结论] 舌色的季节性变化与环境及生理因素密切相关，为舌诊客观化和季节性辨证施治提供了数据支持。 |
| 关键词: 舌象参数 季节性变化 舌诊客观化 |
| DOI：10.11656/j.issn.1673-9043.2026.08.04 |
| 分类号:R241.25;R2-03 |
| 基金项目:中国工程院战略研究与咨询项目“基于“四个面向”的中医药事业和产业高质量发展战略研究”项目（2025-PP-15）；国家自然科学基金青年基金项目（82205316）。 |
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| Seasonal variations in tongue image characteristics among university students：a longitudinal analysis |
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YU Wenjiao, ZHANG Dong, TIAN Ge, MENG Lingkun, WANG Yimin
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Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
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| Abstract: |
| [Objective] This study focused on a cohort of university students and longitudinally tracked the dynamic changes in tongue image parameters at three seasonal time points—early spring（early March），early summer（early June），and midsummer（early August）—to reveal the seasonal fluctuation patterns of tongue color. The aim is to provide evidence for the objectification of tongue diagnosis in traditional Chinese medicine（TCM）and to support seasonal health interventions. [Methods] Approximately 1 000 healthy university students aged 18-22 years were enrolled. Tongue images were collected using a tongue diagnostic device，and tongue color and its variations were analyzed through RGB，HSV，and Lab color models. Data were processed using SPSS 21.0：parameters with normal distribution were analyzed by one-way ANOVA，while non normally distributed data were assessed using non parametric tests to evaluate statistical differences in tongue color parameters across different seasons. [Results] Key findings include：1）significant seasonal variations in tongue color parameters，particularly notable fluctuations in the blue component（B-value）and saturation（S-value）during summer（P<0.05）；2）a progressive decline in the proportion of light-red tongues（a key TCM diagnostic category）across seasons—early spring（72.6%）>early summer （68.1%）>midsummer（65.4%）—potentially linked to elevated metabolic rates and humid heat environmental conditions in summer. [Conclusion] The seasonal variations in tongue color are closely related to environmental and physiological factors，providing data support for the objectification of tongue diagnosis and seasonal syndrome differentiation and treatment in TCM. |
| Key words: tongue image parameters seasonal variation objectification of tongue diagnosis |
