The hazards of taking antibiotics mainly include liver and kidney damage, blood system damage, other system damage and allergy triggering. 1. Liver and kidney damage: antibiotics have to be metabolized by kidneys and liver, if patients take them for a long time, it will bring extra burden to the organs, jaundice, hepatitis and other symptoms, and in serious cases, renal failure and liver failure will also occur. 2. Blood system damage: long-term consumption of antibiotics will disrupt the hematopoietic system, resulting in a decline in platelets and white blood cells. 3. Damage to other systems: long-term consumption of antibiotics will bring about damage to the muscular system, neurological damage and heart disease. 4. Allergy: antibiotics can cause allergy, mild patients may have hives, and severe patients may lead to shock. Long-term use of antibiotics will bring about a full range of effects on the human body, patients should be taken under the guidance of a professional doctor, and regular review.