Welcome to the forum.
What is the evidence your penile lesion is molluscum contagiosium? Has it been professionally diagnosed? If it's a self-diagnosis and you're not a trained medical professional, then I doubt the diagnosis. Your desscription is not typical for MC, both based on your description and the presence of only a single lesion, which is atypical.
But let's assume the diagnosis is correct. If so, you may have caught it from your current partner -- in which case you are not likely to infect her again. If you cauht it elsewhere, you probably have exposed her. However, most sexually active people probably are not susceptible. MC is most common as a childhood infection, transmitted by saliva among toddlers; those persons (i.e. most adults) are immune to a new infection. If your parther in fact is susceptible, the it is likely she was infected. However, it is a trivial, harmless problem. She should be on the lookout for lesions and see a health care provider if anything shows up. But otherwise this should be a concern.
Let me know how the diagnosis was made, and I might have some additional comments or advice.
Regards-- HHH, MD
You're welcome. Glad to have helped.
Dr. Handsfield,
Thank you so much for your advices and for your concern. I told her all you have suggested me in your second comment. I was just hoping that an early lesion of Molluscum contagiosum is not infectious till the waxy core breaks open and contacts the skin. I got all your smart points. Thank you very much from all of my heart for your great help, Dr. Handsfield. I really feel silly to be in such an embarrassing situation. Best regards, Dan
Thanks for the clarification.
Certainly you were infectious at the time you had lesions, before treatment. However, there are no data at all on the infectiousness and transmissibility of MC by sex, i.e. I can't give you a numerical probability. But my guess is the transmission rate is fairly high, if your partner didn't have it in childhood. Since most people probably were infected in childhood, it is likely your partner isn't susceptible and nothing will come of it. However, it would be a kindness to warn her. You can explain these facts to her, assure her you didn't know you had anything transmissible when you had sex, but that she should be on the lookout for lesions like yours. You can also reassure her (and yourself) that MC is never serious -- nothing more than a minor inconvenience, with no serious health consequences.
Dr. Handsfield,
Thank you very much for your prompt and kind answer. Yes, the lesion (s) were professionally diagnosed by a dermatologist. The initial single lesion on the penis was followed by other 4 very small lesions in immediate vecinity and several others larger in the pubic area. They were curetted by the dermatologist and are hardly visible now. I appologize for my incomplete description.
No, I do not suspect I took it from her, the initial lesion was there, before I met her. This is my main reason of concern and distress, I feel bad I could have infected her without knowing it. Thank you again for your advices and your professionalism. Best regards, Dan