Patients with flat warts can eat eggs. Flat warts are benign growths caused by human papillomavirus infection of the skin and mucous membranes. They are flat, raised papules commonly seen in children and adolescents. Common sites include the face, the backs of the hands, and the forearms. Typical lesions are flat papules the size of rice grains to soybeans, round or oval in shape, numerous and dense. The course of the disease is chronic, and some patients may see the warts disappear on their own, but a few may experience recurrent outbreaks. Recurrent outbreaks of flat warts are related to a decrease in the body's immune system. Therefore, eating eggs regularly can appropriately enhance immunity, which may help to some extent in preventing the recurrence of flat warts.