Cancer cells also have good blood supply via vessels . If no abnormal staining occurs another smear is done 6 months later and if that too is normal , then as per schedule. If abnormal areas are seen a few punch biopsies are done and if these are normal then smear repeated in six months . Moderate dysplasia , colposcopy and biopsy and electrical , laser or excision of affected areas . This takes only a few minutes .
Repeat follow up smears are done twice in the first year and once in the second year afterwards.
If biopsies show abnormalities then a cone biopsy is done . CIN 3 -marked dysplasia , higher risk of cancer . Warning signs are bleeding after intercourse .