Distinguishing Diseases Based Upon Which Body System They Affect

1.3.2. Distinguishing Diseases Based Upon Which Body System They Affect An important first step in treating a sick animal is to identify the body system(s) affected. For instance:

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This animal has diarrhea. Diarrhea is usually caused by diseases which affect the digestive system. Therefore, the AHA should concentrate on diseases that attack the digestive system.This animal has fluids running from its nose and it is breathing abnormally. It probably has a disease in its respiratory system. Therefore, the AHA should concentrate on those diseases that attack the respiratory system.
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But remember:

Some diseases affect more than one system at a time!
Some animals suffer from more than one disease at a time!

For example, an ox is thin and has diarrhea. It may be suffering from both malnutrition and internal parasites, and must therefore, be treated for both.

For this reason, it is important to thoroughly examine the animal, to try to detect and treat all of its ailments!