A hard bump on the face and not itchy or painful, consider the following: 1. Dermatofibroma: It is a benign swelling of the skin, mostly due to irritation caused by excessive scratching that leads to proliferation of the fibrous layer. In clinical treatment, you can choose pulsed laser irradiation and freezing for treatment. If the hard bumps are large, you can choose to surgically remove the way to treatment; 2, common warts: is due to human papillomavirus HPV infection caused by the clinical treatment can be applied imiquimod cream mixed salicylic acid ointment for treatment; 3, infectious molluscum contagiosum: caused by infectious molluscum contagiosum virus infection, you can choose to scrape the wart treatment.