Table 4.

Classification of the clinical findings of shoulder ulcers in sows (Lund [22])

Score	Clinical findings
0	No ulcer; fighting wound
1	Ulceration limited to the epidermis; sometimes covered with a moderate scab
2	Ulcerated dermis, sometimes covered with a scab, usually a small amount of granulation tissue or fibrosis bordering the ulcer
3	Subcutaneous tissue ulcerated, sometimes covered with a scab and accompanied by extensive surrounding granulation tissue or fibrosis
4	Ulceration with exposed bone (tuber spina scapula) accompanied by heavy proliferation of new bone tissue