Final answer:
Pap smears are recommended to start at age 21 for sexually active individuals, with screening every three years until age 50 and then every five years until age 65. However, frequency may vary based on individual circumstances. Pap smears can be done safely during pregnancy and after childbirth.
Step-by-step explanation:
If you are sexually active, it is recommended to start receiving routine Pap smears by age 21. Pap smears are used to screen for cervical cancer, which is primarily caused by HPV infection. Starting at age 21, general guidelines suggest getting Pap smears every three years until age 50, and then every five years until age 65. However, this frequency may vary based on individual circumstances, such as a history of abnormal Pap smears or cancer. If a person has a complete hysterectomy or is no longer sexually active, further Pap smears may not be necessary. It is also important to note that Pap smears can be done safely during pregnancy and after childbirth.