Will taking Yuting delay menstruation?

Yuting usually refers to levonorgestrel tablets. Generally speaking, whether taking levonorgestrel tablets will delay menstruation depends on several factors, including individual differences, timing of medication intake, drug metabolism, and whether the person is pregnant. The specific analysis is as follows:

If levonorgestrel tablets are taken during the luteal phase or if the drug metabolizes slowly in the body, it may interfere with the normal hormonal cycle, delaying the shedding of the endometrium and thus causing a delay in menstruation. Some individuals are more sensitive to the drug's components, and their hormone levels may be more significantly affected, potentially delaying menstruation by 7–10 days or even longer. Close observation of menstrual onset is necessary.

If levonorgestrel tablets are taken during the follicular phase or if the drug is metabolized quickly in the body, the impact on the hormonal cycle may be minimal, and menstruation may occur as scheduled without significant delay. Additionally, if pregnancy had already occurred before taking the medication, any menstrual delay would not be related to the drug but rather to the physiological response of pregnancy. A pregnancy test should be performed to confirm this.

If menstruation is delayed by more than seven days after taking levonorgestrel tablets, a pregnancy test should be conducted to rule out pregnancy. This medication should not be used as a regular contraceptive method; frequent use can easily lead to menstrual disorders. After taking the medication, side effects such as nausea, vomiting, and irregular vaginal bleeding may occur. If symptoms are severe, medical attention should be sought promptly. Patients with thromboembolic disorders or severe liver or kidney dysfunction should not take this medication.