Flat warts can be eaten with eggs. Eggs are to be avoided by some patients with allergic diseases who are sensitive to eggs; some people are allergic to egg whites, while others may react to egg yolks. However, the pathogenesis of flat warts is not related to allergies. It is a viral disease caused by infection with HPV type 3 virus, commonly found on the face and forearms. The typical skin lesions are rice grain or soybean-sized, flat, elevated papules that are round or oval-shaped. The surface is smooth and hard, with a normal skin color or light brown, often appearing suddenly in large, dense numbers. After scratching, the lesions can appear bead-like, arranged along the direction of scratching, forming an autoinoculation reaction. Thus, the worsening of flat warts is due to scratching and self-spreading; the more one scratches, the more warts appear. The condition of flat warts is related to the individual's immunity. When immunity is low, it’s easier to be infected. When immunity is high, resistance is stronger, and some patients may see the warts resolve on their own, although a few may relapse. Therefore, eating eggs is unrelated to flat warts.