Table 1.

Classification of burns.

Feature/ Degree	I Superficial	IIA Superficial Partial Thickness	IIB Deep Partial Thickness	III Full Thickness	IV Full Thickness and Tissues Beneath
depth of the wound	epidermis only	epidermis + papillary dermis (saving skin appendages)	epidermis + papillary dermis + reticular dermis	epidermis + dermis + hypodermis	epidermis + dermis + hypodermis + tissues beneath (e.g., fascia, bones, tendons)
counted in the calculation of TBSA	NO	YES	YES	YES	YES
common cause	sunburn	scald (short exposure)	scald, oil (medium time exposure)	scald (long exposure), flame, steam, oil, chemical compounds, electricity	scald (long exposure), flame, steam, oil, chemical compounds, electricity
characteristics	swelling, erythema, dryness, blanches with pressure	blisters filled with serum (as a result of the delamination of the epidermis from the basement membrane), blanches with pressure	blisters filled with serum, variety of colors: white/red/grey/yellow, usually excised and grafted	hard, waxy, leathery consistency, color: white/gray/charred, does not bleed when scratched, surgical treatment obligatory	hard, waxy, leathery consistency, color: white/gray/charred, does not bleed when scratched, reaching deeper structures, surgical treatment obligatory
sensation	painful	extremely painful	painful or decreased sensation	insensate	insensate
healing time	subsides after 72 h, skin peels off after 10 days, no scarring	up to 3 weeks, possible color match defect, hypertrophic scarring (low to moderate risk)	up to 9 weeks, hypertrophic scarring (moderate to high risk)	no healing capacity, without intervention it will separate over the weeks, hypertrophic scarring (high risk)	no healing capacity
measures	should heal by itself	should heal by itself	surgical intervention	surgical intervention	surgical intervention