Cervical cancer is caused by severe
abnormal changes in the cells of the
cervix. Most precancerous or cancerous cell changes
occur in the cervix at the
transformation zone because these cells normally
undergo constant change. During this natural process of change, some cervical
cells can become abnormal if you are infected with
high-risk types of HPV.
Having more than one sex partner, or having a sex
partner who has more than one partner.2
Smoking or a history of smoking. Smoking seems to
make HPV infections last longer.3 One study shows that
your risk of cervical cell changes may also increase if you are around someone
else while they smoke (secondhand smoke).4 Cervical cell changes are more likely to go away on their own
in women who don't smoke.
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