Work out wound healing time instantly with clear inputs, formula shown and shareable results.
Projects wound closure from the measured weekly percentage area reduction, the prognostic marker used in chronic wound care.
Exponential area reduction
Area(t) = initial area x (1 - weekly reduction)^t; weeks to heal = ln(initial / target) / -ln(1 - weekly reduction)
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Failure to reduce area by about 40 to 50% in four weeks predicts delayed healing and prompts review of the treatment plan.
Area reduction is approximately exponential in the healing phase, but infection, pressure and perfusion change the rate.