Filiform warts can partially fall off on their own and the lesions heal on their own, but new damage can still appear afterwards. Filiform warts are benign growths caused by human papillomavirus (HPV) infection of the skin and mucous membranes. Some factors such as trauma to the skin, low immunity, overwork, mental stress, etc., may induce filiform warts, but some cases of filiform warts may fall off and heal on their own, but new damage may still appear afterward. There is currently no single treatment to cure can HPV infection, after the application of salicylic acid, freezing, electrodessication, laser and other therapies combined with local application of drugs to reduce the recurrence rate. If filiform warts are serious, you should seek medical attention and treatment under the guidance of a doctor to avoid delays.