A cytological abnormality found in Pap tests where there are early mild changes in the epithelial cells covering the outside of the cervix. Causes include infection with human papillomavirus, cervical trauma, or postmenopausal changes. Risk factors include intercourse with multiple sex partners or a partner with multiple sex partners, unprotected sex at a young age, history of sexually transmitted disease, and tobacco use. About 60% of LGSIL will spontaneously resolve. If left untreated, a small number of women eventually develop cervical cancer.