Abstract: The data of 31 patients with persistent low heat scald were analyzed retrospectively to summarize the characteristics and etiology. The results showed the basic lesions were erythema, blister or bulla, of which the majority were superficial scald and the minority were deep scald, accounting for 90.3% and 9.7% respectively. Some lesions accompanied by some special lesions such as erythemaabigne. The main site of the disease was lower extremity (61.3%). The main heat sources of low heat scald were heating supplies (80.7%). After 6 months follow-up, 77.4% of the patients returned to normal skin, 9.7% patients had pigmentation, 9.7% patients had scar hyperplasia, and 3.2% had keloids.

Key words: scald, burn, skin damage, heat source, etiology