Is it permissible for men to look at pornographic images when there are doubts about their genitalia and a desire for reassurance, knowing that this has led to psychological comfort and the removal of doubts? If it is not permissible, what should be done?

Disobeying Allah and committing forbidden acts necessitates sincere repentance, regret, and a firm resolve not to return to them, along with increasing good deeds, for indeed, good deeds obliterate evil ones. And Allah accepts repentance from His repenting servants.