Clinical literature consistently demonstrates that progestogen-only contraceptives frequently cause irregular, unscheduled, or breakthrough vaginal bleeding, which is a primary reason for discontinuation.
Evidence for · 3
Medical Treatment for Endometriosis: One Size Does Not Fit All.
2026 · cited by 1
Notes that the main adverse effect of progestogens used in clinical treatment is irregular bleeding.
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Gene expression associated with unfavorable vaginal bleeding in women using the etonogestrel subdermal contraceptive implant: a prospective study.
2024 · cited by 1
Investigates unfavorable vaginal bleeding and breakthrough bleeding associated with progestogen-only contraceptive implants.
Treatments of unscheduled vaginal bleeding due to progestin-only contraception.
2024 · cited by 0
Discusses treatments for unscheduled vaginal bleeding specifically resulting from progestin-only contraception usage.