Microbial detection instruments are used to detect the microbial content in the pharmaceutical field and determine its hygiene quality status. Drugs contain nutrients and living conditions suitable for microbial growth. Once contaminated by microorganisms, it can cause a large number of microbial reproduction. The main sources of microbial contamination in drugs include contamination of drug raw materials, microorganisms in the air, and microorganisms in water. Secondly, unreasonable and inappropriate production methods in the drug production process may also cause microbial contamination of drugs. Due to the nature and characteristics of drugs, certain drugs must meet the requirement of sterility according to relevant regulations, and the microbial content of drugs can be determined by using microbiological testing instruments.

Drugs are usually used for prevention, treatment, diagnosis of human diseases, and regulation of physiological functions. There are many types and ingredients of drugs, and their internal quality cannot be identified except for appearance. Therefore, the effectiveness of drug use needs to be in accordance with regulations. The production of drugs should always maintain safe, effective, uniform, and stable effects. Microbial detection instruments are used to test the quality and safety of drugs at home, avoiding the misuse of drugs contaminated by microorganisms and endangering human health and safety. Microbial contamination of drugs is multifaceted and can occur through multiple pathways. Therefore, attention should be paid to the contamination of drugs by microorganisms at all stages of drug production and circulation. Microbial detection instruments should be used for testing, and drugs found to be contaminated by microorganisms should be promptly treated without pollution to avoid their circulation into the market.