1.Should avoid everything to invoke an element, wait like traumatic, overfatigue, excited, infection, gravid, childbirth.

1.应避免一切激发因素，如外伤、过劳、激动、感染、妊娠、分娩等。

2.Arrive gravid and terminal, increscent uterus and fetal show an oppressive rectum first, also can cause defecate difficulty.

2.到妊娠晚期，增大和胎先露直肠，也都能导致排便困难。

3.The average number of the eggs in each mature gravid proglottid was 26 891 ,varied from 550 to 172 500.

3.猪带绦虫每节成熟孕节内虫卵数量不等,最少为550个,最多为172500个,平均为26891个。