We can describe the symptom as a clear sign of the presence of some disease, phenomenon or complication. The symptom is the way in which this disease or health complication manifests itself, usually externally, although there are also internal symptoms that cannot be seen with the naked eye. The symptom allows to act in relation to what is foreseen to appease the disease and cure it. In addition, it can serve as a prevention method in the case of recurrence.
Symptoms manifest themselves in the organism of a living being in different ways. The most common are those that are observed from the outside since they are those that can be seen without the need for studies or clinical analysis. Then there are the internal symptoms that can only be seen from observation of specific plaques, analysis, and data. These symptoms can usually be perceived by the person or animal in question through pain or discomfort. Some examples of external symptoms can be dry skin, hair loss, irritated eyes, etc., while examples of internal symptoms of the presence of a disease can be poor digestion, sore throat, headache, constipation, etc. .
Depending on each disease and each situation, the symptoms can be more or less severe. In some cases, the symptoms become present when the disease has been incubated for a long time in the person or in the animal and that is why this always implies acting as quickly as possible to combat a long-standing disease. Other symptoms can become visible before the most serious stage of the disease is reached, such as for example with colds (whose symptoms are sneezing, cough, allergies, fever) since they can serve to avoid a flu or respiratory illness higher.
