Abstract: | We treated 109 girls with isosexual precociouspuberty with true precocious puberty in 63 andpseudoprecocious in 46. The true and pseudopreco-cious puberties were classified etiologically and dif-ferentiated according to their clinical features. ResuIts of treatment showed that chlormadinone waseffective in controlling menstruation and secondarysex characters in 43 patients with true precociouspuberty except 2 who were more than 8 years old,and that this agent has no effects on physical de-vdlopment including the final height. |