Low LDL cholesterol can be seen in people with hyperlipidemia . After treatment. Hyperlipidemia patients due to taking too much medication leads to increased blood concentration in the blood, it will lead to a decrease in LDL, the need to adjust the dose of drugs in time to avoid fluctuations in blood lipids. Appearance after appropriate treatment indicates that the patient’s blood lipids decline, the gradual recovery of health status is a normal phenomenon, should continue to receive treatment. 2. hyperthyroidism, hyperthyroidism patients due to catabolism enhancement, there may be a decrease in total cholesterol content, occasionally accompanied by low-density cholesterol, this situation requires timely treatment of hyperthyroidism, taking methimazole, no need to target the low density cholesterol low There is no need to treat low-density cholesterol.