You should avoid Oestrogel or Utrogestan if any of the following applies to you:You have, or have ever had breast cancer, or any form of cancer sensitive to oestrogens.
You have unexplained vaginal bleeding.
You have excessive thickening of the womb lining endometrial hyperplasia that is not being treated.
You have, or have ever had a blood clot in the vein (such as DVT in the legs)
You have a blood clotting disorder.
You have, or have ever had a heart attack, stroke or angina.
You have, or have ever had liver disease and your liver function levels are still not normal.
You have a rare blood condition called porphyria.