If the hematocrit (HCT) level is low, it means that the proportion of red blood cells in the blood is lower than normal. This condition, known as anemia, can lead to various symptoms and health issues. Common symptoms of low HCT include fatigue, weakness, shortness of breath, dizziness, pale skin, and rapid heartbeat. Anemia can be caused by various factors, including nutritional deficiencies, chronic diseases, blood loss, and certain medications. It is essential to identify the underlying cause of low HCT and address it to restore the blood's healthy red blood cell count.