Hospital care and treatment by invasive procedures produce significant psyc
hological effects on children. Urogenital surgery deserves particular study
. The developmental aspects of different ages are highly relevant. A propos
ed multidimensional model of contributing factors includes type of medical
treatment, any previous surgery, the child's temperament, coping strategies
of both child and parents and their psychological health, support from par
ents and staff, information and psychological preparation and age of the ch
ild. Up to now, then have been no clear recommendations as to the best age
for elective surgical procedures in children according to psychological ris
k. In general, older children adapt better psychologically after hospital c
are. The literature, however, tends to advise elective surgery before 12 mo
of age, based on apparent psychological adjustment in the very young after
surgery and from a desire to shorten the period of living with the malform
ation/disorder. However, increased follow-up surgery from early interventio
ns gives a higher risk of psychological problems. More well-controlled stud
ies are needed before final evaluation of the impact of surgical interventi
ons on psyche-social symptoms according to age group. In this analysis a mu
ltidimensional model is preferred.