Other side effects include: • Other problems where the patch has been on the skin, skin reactions or allergic reactions • Non-cancerous (benign) tumours in your breast or liver • Breast, cervical or liver cancer • Fibroids in the womb (uterus) • Abnormal blood sugar, cholesterol or insulin levels • Blood clots, blocked arteries, heart attack or stroke • Problems when wearing contact lenses • High blood pressure • Inflammation of the colon • Gallstones or blockage of the bile duct • Yellowing of the skin and whites of the eyes • Hair loss • Sensitivity to sunlight • Less frequent, light or no periods • Anger, feeling irritable or frustrated.