The aim of this study was to evaluate the relationship between perineal body length and perineal laceration risk in primigravid patients.

Primigravid women with singleton pregnancies in the first stage of labor at the 35th week of gestation were included in the study. The peineal body length of the patients was measured by the same physician.

After 35 weeks of gestation, nulliparous women with single gestation were included in the study and genital hiatus and perineal body measurements were taken.

The presence and degree of perineal laceration after birth were determined. Correlation of genital hiatus and perineal body measurements with perineal laceration risk were evaluated.

After birth, vaginal laceration, oxytocin use, fetal birth weight, the presence of episiotomy were recorded.

Inclusion Criteria:

-Primigravid women with singleton pregnancy at over 35th week

Exclusion Criteria:

• the story of operative vaginal birth;
• caesarean section;
• breech presentation;
• those with a history of anorectal surgery or trauma

Meet the criteria of inclusion in our hospital for birth,The study was planned for women with singleton pregnancies of 35 weeks or more.