Long-term side effects of birth control pills can include: Cardiovascular Risks: Slightly increased risk of blood clots and elevated blood pressure. Cancer: Possible association with breast and cervical cancer, but reduced risk of ovarian cancer. Bone Health: Slight reduction in bone density, particularly in young women. Fertility: Temporary delay in returning to regular menstrual cycles and fertility after discontinuation. Metabolic Effects: Potential weight changes, mood swings, and effects on nutrient absorption. Sexual Function: Some individuals may experience a decrease in libido. Menstrual Irregularities: Possible post-pill amenorrhea. It's essential to discuss any concerns with your healthcare provider.