In 1987 , we reported the preliminary results of hypertrohpic scars controlled with application of radio-nuclide. This article presents the results after 1-4 years follow-up. Seventy nine scars in 64 patients were included, of these, .52 scars were treated in combination with excision, the rest treated with applicator alone. The recurrence rates in two groups were 3.84% and 14.8% respectively with the mean 7.6% .To lower the recurrence rate, a booster irradiation was applicated in 10.13% of scars during their early stage of recurring.Depigmentation of irradiated area was found in 34.5% of scars,of them, 37.1% have not recovered during our follow-up period. No systemic by-effects were found

0.05),but the 24h urine zinc level increased markedly(P