To observe the tongue characteristics of burn patients during the reabsorption phase and preliminarily analyze their relationship with disease severity and hematological indicators.

From February 2024 to April 2025， 115 hospitalized burn patients meeting inclusion and exclusion criteria in the Department of Burn and Wound Repair Surgery of the First Affiliated Hospital of Anhui Medical University were enrolled. Basic data of patients were collected. Traditional Chinese medicine tongue diagnosis was performed 3–5 days post-injury， documenting tongue color， shape， coating color， and coating texture. The tongue characteristics were compared among patients with different burn severities， and their relationships with routine blood parameters ［white blood cell （WBC）， neutrophil （NEU）］， liver and kidney function ［alanine aminotransferase （ALT）， aspartate aminotransferase （AST）， blood urea nitrogen （BUN）， creatinine （Cr）］， and coagulation function ［prothrombin time （PT）， fibrinogen （FIB）］ were analyzed.

There were statistically significant differences in tongue color (P<0.001) and tongue body thickness （swollen/thin） (χ²=9.971, P=0.019) among burn patients of different severities during the reabsorption phase. There was a statistically significant difference in BUN levels among patients with different coating textures （Z=-2.754， P=0.006）. The differences of PT among patients with different tongue colors were statistically significant （H=16.041， P=0.001）. Statistically significant differences in FIB levels were observed among patients with different tongue colors， tongue body thicknesses， coating colors， and coating textures （H value was 17.225，Z values were -2.032， -2.924， and -2.351； P values were <0.001， 0.042， 0.003， and 0.019， respectively）.

The tongue characteristics of burn patients during the reabsorption phase correlate with disease severity and hematological indicators such as BUN， PT and FIB levels. These features may serve as supplementary indicators for assessing burn severity and hematological abnormalities， thereby providing reference for integrated Traditional Chinese and Western medicine diagnosis and treatment.