Excess lactic acid causes lactic acidosis, states Healthgrades. Lactic acidosis results from overproduction of lactic acid in the body, which occurs when the oxygen supply is less than the oxygen demand, leading to high blood acidity. This lactic acidosis can lead to life-threatening symptoms that need immediate medical care.
When an individual undertakes activities that reduce blood oxygen level in the body, such as weight lifting and sprinting, the level of lactic acid in the blood increases, leading to symptoms such as nausea, with or without vomiting, abdominal pain, arrhythmia, tachypnea, tachycardia, lethargy, breath shortness and fatigue, explains Healthgrades. Lactic acidosis can also lead to serious symptoms, including bluish coloration of the lips or fingernails, chest pain, chest pressure, high fever, lack of urine production, severe and abnormal pain, rapid heart rate and breathing problems.
Kidney, liver and heart diseases, diabetes, cancer, severe anemia, shock and seizures are some of the medical conditions that can lead to lactic acidosis, according to Healthgrades. In rare cases, metformin and nucleoside reverse transcriptase inhibitors can also cause lactic acidosis. To treat lactic acidosis, its various underlying causes should be addressed. Other treatments of lactic acidosis can include supplemental oxygen, vitamins and intravenous fluids.