Changes

===Osteosarcoma===

===Osteosarcoma===

Although relatively uncommon in guinea pigs they can be seen as painful bony swellings in guinea pigs over 1 ear of age.<br />

Although relatively uncommon in guinea pigs they can be seen as painful bony swellings in guinea pigs over 1 ear of age.<br />

===Other===

==Other==

==Micropthalmia==

===Micropthalmia===

The eye will either appear small or will be non-existant with resultant partial or complete blindness. Micropthalmia is commonly associated with all-white coated guinea pigs.<br />

The eye will either appear small or will be non-existant with resultant partial or complete blindness. Micropthalmia is commonly associated with all-white coated guinea pigs.<br />

==Conjunctivitis==

===Conjunctivitis===

The conjunctiva will become reddened with epiphora or an ocular discharge. Often conjunctivitis is either a symptom of upper respiratory disease, irritation and allergic response. If the conjunctivitis is unilateral then trauma is likely to be the cause.<br />

The conjunctiva will become reddened with epiphora or an ocular discharge. Often conjunctivitis is either a symptom of upper respiratory disease, irritation and allergic response. If the conjunctivitis is unilateral then trauma is likely to be the cause.<br />

==Middle Ear Disease==

===Middle Ear Disease===

The affected guinea pig will hold its head over to the affected side and may also suffer balance problems. The condition is very similar in terms of symptoms to “wry neck”, see below. Pus may be seen in the ear canal and the infection may progress to the inner ear and to the meninges. Ear infections in guinea pigs are also known to accompany respiratory infections such as Salmonella and Pasturella spp. <br />

The affected guinea pig will hold its head over to the affected side and may also suffer balance problems. The condition is very similar in terms of symptoms to “wry neck”, see below. Pus may be seen in the ear canal and the infection may progress to the inner ear and to the meninges. Ear infections in guinea pigs are also known to accompany respiratory infections such as Salmonella and Pasturella spp. <br />

==Cleft Palate==

===Cleft Palate===

This is a congenital abnormality resulting in the guinea pig potentially being unable to suckle or chew food correctly. In guinea pigs the cleft usually involves the hard palate only. There is no treatment and do to its inherited nature the guinea pig should be destroyed.<br />

This is a congenital abnormality resulting in the guinea pig potentially being unable to suckle or chew food correctly. In guinea pigs the cleft usually involves the hard palate only. There is no treatment and do to its inherited nature the guinea pig should be destroyed.<br />