Napoleon's health issues were well-documented, including stomach pain, liver problems, and urinary tract infections. However, there is no specific mention of impotence or sexual dysfunction. Additionally, Napoleon's relationships with women and his fathering of several children suggest that he was not impotent.
It is possible that rumors about Napoleon's impotence were spread by his political opponents or those seeking to discredit him. Given the limited and conflicting information available, it is challenging to make definitive conclusions about Napoleon's sexual potency during his last days.