“No they wont say it because its not true. Teh gemara says otherwise and any woman who doesnt believe in what the gemara says deserves to be fired from her job in a yeshiva. How can you let a woman near our dear children who will tell them that the Torah is false?”
Mosherose: Head lice do not generate spontaneously – they come from nits (eggs) that are laid by live crawling lice that go onto the heads of unsuspecting people. They do NOT come from dirt (OH gosh I am starting to itch just writing about this), and plenty of otherwise clean people can get it. Most notably, people coming back from overseas might bring it with them, or kids in camp situations (daycamp as well as sleepaway)often are infested. I have had ONE summer many years ago when my kids had licwe, and you had better believe I spent several agonizingly exacting weeks treating my ENTIRE family (presume they all have it if one does), and then checking for nits every single day. It is a tedious and disgusting job, but once you have seen either a louse or a nit (grayish pearly teardrop shape that attaches to the hair shafts), you will NEVER forget it. It can easily be seen with the naked eye, and the heads must be inspected in good light (preferably outdoors, so the nits are not brought back in the house). You cannot check too well. There is nothing spontaneous about this, and if the Gemarah says otherwise, then perhaps the Gemarah is actually talking about something else entirely. It certainly is not correct information about head lice, no matter what you think.
Body lice might be a different story, as I know absolutely nothing about that (B”H)and I am unqualified to comment. But I doubt that it is spontaneously generated, either. Even the maggots that we find in dead bodies generate from microscopic eggs that are ALWAYS present on us (now there is a nauseating thought). If you could actually see what is on your own eyelids, you would vomit. The larvae hatch and feed on decomposing flesh (as Hashem intended), but they are always present, from what I have been taught.
Your remark about the women who check children for head lice, is inappropriate, and your zeal to defend the Gemarah, while laudable, is based on a refusal to call a spade a spade. Lice eggs are VERY visible and very gross, despite your assertion to the contrary. You are mistaken. A person who insists he is right in the face of overwhelming evidence to the contrary, needs to ask himself why he needs to be so insistent. In any case, the head checkers are not telling our dear children that the Torah is false. They are only telling them to come closer so they check their heads for nits.