“…The causes of PFDs are not well understood, but they can be classified according to their origin into obstetric and non-obstetric causes. Advanced age, obesity or having a high body mass index, as well as heavy lifting, smoking, excessive exercise, connective tissue disorders and neurological diseases, can be considered non-obstetric causes [ 8 , 10 , 14 , 15 , 19 , 20 , 23 , 24 ]. Obstetric causes include parity, operative vaginal delivery, duration of the first and second stages of labour, episiotomy, epidural analgesia, laparoscopic and hysteroscopic interventions, occiput posterior presentation, macrosomy, foetal head size, obstetric trauma, perineal laceration, prostaglandin and oxytocin induction [ 10 , 15 , 19 , 20 , 21 , 23 , 24 , 25 , 26 ].…”