it makes sense that mirena might help a little but to prevent some of the symptoms of endometriosis such a heavy and painful periods, even after ablation. however, it is not well studied, and it is not known for sure if it will work, so the manufacturer does not currently recommend the use of mirena after an ablation. this doesn t mean that your doctor can t use it, it just means that he/she can t be sure if it wil work, or maybe even there may be problems with it such as infection. I am but aware I any studies of mirena use in women with a history of porphyria. in general though, progesterones are used with caution if it is really necessary. I would assume then that mirena should be safe. personally, I don t use mirena in women with an ablation. that doesn t mean it can t be done, I just think that you should give the ablation a chance to work on its own, and because it is unknown what the effects would be. that doesn t mean though that your doctor doesn t feel differently. I hope this is helpful, please let me know if I can be of further assistance.