I was wondering if any of you have ever had a petechial rash caused by autoimmune thyroid disease. Is it considered one of the symptoms? I've had petechiae since late January, so I'm assuming something is wrong with me, but I'm not sure yet what. I'm most suspicious of my thyroid. I also suspect they might've been cause by a sulfa antibiotic that I took at the beginning of January.
I showed the rash/spots to my family doctor, but he didn't know what it was. He thought it was a fungal infection and gave me some steroid/antifungal cream for it. After 9 days of the cream, I see absolutely no difference in the "rash." I'm convinced that it's petechiae, even though my doctor said it wasn't. I have a dermatologist appointment scheduled for mid June, which was the earliest I could get. In the meantime, I don't know what to do or what to think. Basically, here are my questions:
1. What do petechiae look and feel like when they're caused by an autoimmune thyroid problem? (Mine are slightly raised, filled with dark blood at first, dry up into a round scab under the skin after a day or so, about .5-1.5 mm wide, mostly on my buttocks but also a few on my legs and one ankle, not itchy or painful, no fever or any really bad signs of illness.)
2. How long do they last? (I've had mine since about the end of January, with new ones popping up maybe once or twice a month. The only ones that go away are the teeniest, tiniest ones.)
3. If they are caused by an autoimmune disease, is it dangerous for me to wait until June to have someone try to diagnose them? (My blood platelet counts were normal as of January 22nd, so I don't think I have any of the truly scary causes of petechiae, such as leukemia or a really bad clotting disorder.)
4. I have a lab form to get a blood test for thyroid antibodies, but I've been holding off until I feel bad. Should I get the test done on a day when more of the petechiae/mystery spots pop up again?
Should I be worrying and doing something? Or should I just shrug this off as nothing?
Hi there, sorry you haven't been getting an answer to this but it is definitely an unusual question and hopefully someone will be able to help.
My only experience with this is when my daughter got it at the age of 2 and it was not related to thyroid.
I noticed you had been on an antibiotic beforehand and then The rash appeared. Hers was allergic purpura with petechiae and I wasn't really given much info on it except to say it is quite common and often happens post viral infections. (She had been on 2 lots of antibiotics, then the rash and extreme hip/leg pain accompanied it. (Reactive arthritis) her kidneys were also affected but this did not kick in for a while, she fully recovered and the rash did not last as long as you seem to have yours.(apparently very young children are susceptible to kidney issues with allergic purpura that go by the time they are 6 so I doubt this would affect you)
She had large purple patches with lots of little red dots similar to what you have described but they all disappeared with time. I was told not to give her aspirin or any meds that involve blood thinning as a precaution, mind you the hospital gave her brufen for the arthritis part of it, while she was in.
Any way, holding off on your antibodies test won't achieve anything as if antibodies are present they will not disappear.
If this rash is part of hypothyroidism, I have just read up that it is generally associated with pernicious anemia and in turn very low B12, a low platelet count is almost always noted, thankfully your platelet count was normal.
I cannot be of much help to you, only to say that in my daughters case it came after an Infection and double course of antibiotics and was gone within a couple of months, if even that. Unfortunately I cannot shed light on your own case and its duration. But the doctors were a bit baffled at the time and it did seem like it was a reaction to something.i was quite relived when it went and proved to be nothing more than an unusual rash, hopefully you will have the same outcome,
I hope you get some answers soon.
Your description of rash does sound like petechiae. This is not a usual sign of thyroiditis. Certain drugs can cause petechiae, notably aspirin, ibuprofen naproxen and other non steroidals. Your anti-thyroid antibodies can be done any time, as they do not fluctuate a lot with symptoms, so I would do them now. It is possible the sulfa started this. It is also possible if one AI disease exists, another one could also. Some of the other AI diseases cause petechiae. Your platelet count should be monitored as long as they persist, but they can be present with normal counts. I would not worry about them, but you might want to avoid the drugs I mentioned (Tylenol is ok).
Thanks for your responses, surfer and ladybud. My spots are still here, but I haven't had any new ones pop up since I posted (unless you count weird yellow bruises), so for now I'm going to assume that nothing horrible is wrong with me. I'm thinking it might just be the case that they take forever to go away when they're on my buttocks because I keep sitting on them, never allowing them to stop bleeding and heal. If I were seriously ill, I'd be covered in scary purple blotches that keep coming (purpura and ecchymoses), I think.
I have noticed that MS and Lupus sufferers get petechiae, but I don't think I have enough symptoms of those to even seriously consider that I might have either of those. And if I'm going to guess at what's wrong with me, I'd rather guess at something that actually has a cure/treatment, like hypothyroidism.
I think I will hold off on my antibodies test until I see an ear-nose-throat specialist in about a week and a half, or until I see the dermatologist in June. I want to ask them whether there's one underlying condition that's causing all my (multiple) problems, and both those doctors are associated with a better lab than the one that my regular doctor uses. So I'd really prefer them to order any thyroid tests for me (if they do). Then if they don't want to test anything, I'll just follow through with my regular doctor's lab request form. But it is reassuring (sort of!) to know that antibodies don't go away, and I won't be missing out on a possible diagnosis by waiting.