Urea

High levels of urea in the blood could indicate that your liver and kidneys may not be functioning optimally. This could be due to various reasons, such as dehydration, kidney disease, liver disease, or even certain medications like diuretics and antibiotics. Additionally, a high-protein diet or excessive muscle breakdown from intense exercise can also contribute to elevated urea levels. In essence, high urea levels suggest that your body's natural waste removal process might be compromised, and it's essential to identify the underlying cause to maintain a healthy balance.

Symptoms of high levels of urea in the blood may include fatigue, weakness, shortness of breath, confusion, nausea, vomiting, dehydration, swelling in the legs or feet, and decreased urine output.

Low levels of urea in the body could indicate that your liver may not be producing enough of it, possibly due to liver dysfunction or a low-protein diet. It could also be a result of overhydration, which dilutes the concentration of urea in your blood. Certain medications, such as anabolic steroids or tetracycline antibiotics, can also contribute to lower urea levels. In some cases, low urea levels might be associated with genetic conditions like ornithine transcarbamylase deficiency, which affects the body's ability to process and remove excess nitrogen. Overall, low urea levels suggest that your body's natural waste removal process might not be functioning optimally, and various factors could be contributing to this imbalance.

Symptoms of low levels of urea may include fatigue, weakness, loss of appetite, weight loss, nausea, vomiting, and confusion, indicating possible liver dysfunction, overhydration, or an underlying genetic condition.