Hi,

I am sure Big boy is going to be fine. Blood shot eyes and reddened gums indicate an increase in the blood perfusion of those areas or congestion of the blood vessels in those areas.

The significance of this will depend on the presence of other outward signs. These include colic signs (rolling, flank watching) signs of pain or discomfort (lameness, sweating, increased heart rate (above 60))

If any of the above signs are present or develop then I would get a vet out as this may indicate significant disease,

In the absence of the above and otherwise normal behaviour (appetite,eating, drinking etc) I would watch him and it should subside.

If the eyes begin to water, discharge or the eyelids swell then there maybe an early stage conjunctivitis developing, or other regional disease (could cough etc)

Another cause could be extreme exertion, anxiety previous to you noticing the inflammation or possible exposure to an allergic stimulus.

If the eyes are particularly inflammed then bathing with a cold wet tea bag will soothe them.

So to recap, if other signs are present/develop then get a vet out. If the eyes worsen then you may need a vet check to be given some ointment. Finally it may settle quickly and you will never know the cause.

Good luck and best wishes

Dr Dan Makin