BDD and GID are different conditions. One of the key differences is the fact that BDD responds to psychopharmacology, whereas GID does not. Furthermore, psychopharmacology or psychotherapy are often successful in convincing the BDD sufferer that their perceptions are distorted. Those with GID are rarely convinced that they are mistaken. GID (especially "transsexualism") also often manifests during early childhood, rather than during adolescence. It is standard practice in treating BDD to convince sufferers that surgical procedures are not necessary because eradicating their first perceived defect through surgery will only make them start obsessing about their next perceived defect, whereas those people properly diagnosed as "transsexual" under GID benefit greatly from surgical procedures specifically targeted at their primary or secondary sex characteristics. However, a person with GID may also have BDD if they obsess over perceived defects on their body that contradict or go beyond their gender identity.