There are many reasons why ovulation test strips have been weakly positive, which may be due to improper handling, immature follicle development, etc. Patients should clarify the causes and treat them accordingly. Common causes and treatments 1. Improper operation: The sealed aluminum foil pouch should be opened before testing, and should be used as soon as possible within 1 hour after opening the original package. Do not make the test strips damp or touch the reaction film before use. The jarred test strips should be covered tightly with the jar lid immediately after taking out the test strips, and used within the expiration date, do not use after the expiration date. In addition, the sensitivity of different brands of ovulation test strips is different, the specific use method is similar though, it is recommended to refer to the instruction manual in detail for operation; 2, improper use of urine: urine is too dilute will lead to a low concentration of LH in the urine, the concentration of LH in it lacks representation, so you should not drink too much water or other beverages before testing, the test strips should be observed within the specified time for the reaction results, the results are invalid after 30 minutes. Do not take hormonal drugs that may affect the test results before starting the test, it will affect the results; 3. Immature follicle development: Immature follicle development, women do not ovulate, ovulation test paper can also be weakly positive. If the test paper is still weakly positive, you can try to change the test paper. Some women can only detect a weak positive test (which means they are about to ovulate or have already ovulated), but not a strong positive test (which means they are ovulating), which does not mean that ovulation has not occurred.