Table 1 Prevalence n (%) of histopathological changes in full-thickness in the uterine horns obtained from 120 bitches

Number of bitches

30

30

30

30

Mean age of bitches (years) ± SD

2,2 ± 1,5^*

4 ± 2,4^*

6,4 ± 2^*

9,3 ± 2^*

Mean weight of bitches (kg) ± SD

17.1 ± 12,3

18.7 ± 11,3

20.2 ± 8,9

19.5 ± 14,8

 Significant uterine enlargement

–

–

12 (40)

30 (100)

 Reddened of endometrium

–

30 (100)

9 (30)^a

4 (13,3)^a

 Cysts on endometrium surface (full/ ruptured)

–

–

30 (100)

30 (100)

6 (20) 24 (80)

 Discharge inside the horns:

–

–

3 (10)

30 (100)

  -purulent

–

–

–

30 (100)

  -serous-bloody

–

–

3 (10)

–

 Endometrial edema

–

24 (80)^A

9 (30)^A

–

  -mild

–

–

7 (23,3)

–

  -moderate

17 (56,7)

2 (6,7)

–

  -severe

7 (23,3)

–

–

 Acute endometrial haemorrhage:

–

30 (100)

9 (30)

4 (13,3)

  -mild

–

6 (20)

3 (10)

–

  -moderate

–

24 (80)

6 (20)

3 (10)

  -severe

–

–

–

1 (3,3)

 Cystic hyperplasia of endometrial gland

–

–

30 (100)

30 (100)

  -mild

–

–

4 (13,3)

2 (6,7)

  -moderate

–

–

11 (36,7)

9 (30)

  -severe

–

–

15 (50)

19 (63,3)

 Adenomyosis

–

–

2 (6,7)

4 (13,3)

  -mild

–

–

1 (3,35)

–

  -moderate

–

–

1 (3,35)

3 (10)

  -severe

–

–

–

1 (3,3)

 Endometritis

–

–

3 (10)

30 (100)

  -chronic

–

–

2 (6,7)^a

30 (100)^a

  -acute

–

–

1 (3,3)

–

 Interstitial fibrosis

–

–

2 (6,7)

5 (16,7)