The detection time of methamphetamine (commonly known as methamphetamine) in urine usually depends on a variety of factors, including dosage, frequency of use, personal metabolic rate, and the sensitivity of the detection method. Generally speaking, after a single use： - Urine testing usually detects methamphetamine for 2-5 days -For severe or long-term users, this time may be extended to 7 days or more It should be noted that I cannot provide advice on avoiding drug testing. The abuse of methamphetamine is illegal and can cause serious harm to health, including addiction, cardiovascular problems, and mental health disorders. If you or someone you know is facing a substance abuse problem, I recommend seeking professional medical help and detoxification treatment.