Why does microbial resistance to antibiotics occur?

18 November 2025, Tuesday

Many factors contributing to the emergence of antibiotic resistance are associated with the wrong actions of patients. One of the main causes of antibiotic resistance is self–medication. It happens that patients independently prescribe medications with antibacterial effects, even with ordinary acute respiratory viral infections.

Many people often use antibiotics to treat viruses (they do not act on viruses), choose the right dosage incorrectly, do not take into account the required frequency of administration (how many times a day and at what intervals) and the necessary course of treatment (for example, drink the medicine for 5, 10 or 14 days).

Many patients, after their condition improves, reduce their medication intake to 1 time per day instead of the required 2-4 times (for different drugs) or stop therapy altogether. All this reduces the concentration of the antibiotic in the body at a time when not all the bacteria have died yet. And some microorganisms can not only survive in such conditions, but also become resistant to the action of an antibacterial drug.

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