For a pregnant woman with increasing size of existing genital lesions, what is the recommended treatment option?

For a pregnant woman with increasing size of existing genital lesions, the recommended treatment option is trichloroacetic acid. This choice is based on its safety profile during pregnancy and its effectiveness in treating warts or genital lesions. Trichloroacetic acid is a topical agent that can be applied directly to the lesions, leading to their regression.

It is crucial to manage such lesions carefully during pregnancy to avoid the risk of more invasive procedures or medications that may pose risks to fetal development. Other treatments, such as imiquimod and podophyllotoxin, are typically avoided during pregnancy due to concerns regarding potential adverse effects on the fetus. While observation can be a reasonable course of action in some cases, the increasing size of lesions warrants a more proactive approach to prevent complications. Thus, using trichloroacetic acid becomes the most appropriate treatment option in this scenario.