I don't think this is a common question but it sure is important. I am a 40 year old man. We are planning on our 2nd child. I am on Tretinoin 0.025% - and use it at night 3 times a week. I wonder if it will cause any deficiency in my sperm that could affect the baby. I cant seem to find much info about this topic on the internet. Anyone have any opinions?
Am not a doctor, but no.
Not even accutane is causing that, which is big (iso)tretinoin dose taken orally. Skin absorbs very very small amount of tretinoin into blood, and even if accutane would be causing sperm deficiency that small dose absorbed woudnt.
My general practitioner said to me I would have trouble having children because I drank like 1000 accutane pills in my life. But this has no scientific back up, so I think she talks nonsense which is very bad for her reputation.