In answer to your question:
No, topical tretinoin cream causes no severe side effects, even if you and your wife are trying for a baby. In men, the only side effect is some skin sensitivity to sunlight. It definitely does not cause genetic mutations in men, or potentially your baby, if you are currently trying for a baby with your wife (ie teratogenic). This is because the skin absorption rate of tretinoin cream into your blood is way too low.
In women, even though there’s also no evidence to show it causes mutations, dermatologists and other doctors would recommend NOT to use topical tretinoin if they were trying for a baby.
You can check out a recent 2016 study on topical tretinoin, supporting what I’ve explained here:
https://www.ncbi.nlm.nih.gov/pubmed/27598619
Having said that, doctors tend to err on the side of caution when it’s a drug or medicine that they are not familiar with (myself included!). When I asked my own polyclinic friend, she also said that she would not prescribe tretinoin cream!
Both myself and a consultant dermatologist friend I double checked with would have no qualms about prescribing it, especially for men. Perhaps the polyclinic doctor was also concerned that your wife may start using it?
My guess is that if you either go to a private clinic which sees a lot of skin patients, or the NSC – you’d be much more likely to get your tretinoin cream prescription!
