What is described as a common clinical sign of conjunctivitis?

Mucoid discharge is indeed a common clinical sign of conjunctivitis. This type of discharge is characterized by a thick, often sticky secretion that can be yellow, green, or clear, and it often results from the inflammation of the conjunctiva, which is the membrane lining the eyelids and covering the white part of the eyeball.

In cases of conjunctivitis, the conjunctival tissue becomes inflamed, leading to an increase in mucous production as the body attempts to protect and lubricate the ocular surface. This discharge can accumulate in the corners of the eyes, causing further irritation and discomfort to the affected animal.

Other clinical signs of conjunctivitis may include redness of the conjunctival tissue, squinting, and excessive tearing, but the presence of mucoid discharge is a distinctive and characteristic sign that veterinarians look for when diagnosing this condition.