Pubic lice have an incubation period, and days to months may pass between the time a patient is infected with pubic lice and the onset of the disease. Pubic lice are a parasite that often causes some patients to develop pubic lice disease, which is a contagious skin disease. Days to months can pass from the infection of pubic lice to the appearance of symptoms, but the exact time varies from person to person and may be related to one’s physical condition, the number of infected pubic lice bugs and so on, but there is no definite time. As pubic lice disease is mainly transmitted through sexual contact and is prone to cause intense itching, red rash and ecchymosis at the infected area, it is easy to affect the quality of life and health of patients. Therefore, those who are suspected of having pubic lice disease should consult a doctor in time for early detection, diagnosis and treatment so as to restore their health and improve their quality of life. It is recommended that those who are diagnosed with pubic lice disease should actively cooperate with the doctor for treatment, strengthen personal hygiene and care, and avoid sexual intercourse during the treatment period.