Doctor insights on:
What Insect Bite Causes Bruising
Insect bites are from mosquitos, spiders, flies, ticks, and other species that use their mandibles (jaws) to attach to a person or other animal. They can then suck blood out of their "prey" and leave saliva proteins that cause itching and swelling. Other insect species, like bees, yellow jackets, wasps, hornets and fire ants actually inject venom into their prey and can not only cause localized pain and swelling, but severe, acute allergic reactions in ...Read more
Facial swelling: Face swelling can be caused by inflammation, allergies, trauma or infection in the tissues of the face. Facial swelling can be due to relatively mild conditions, such as a sinus infection, or a serious or life-threatening condition, such as analphylactic shock, that should be immediately evaluated in an emergency setting... ...Read more
Many-see below ex.: The bite from fire ants and the sting from bees, wasps, and hornets are usually painful. Bites caused by mosquitoes, fleas, and mites are more likely to cause itching than pain. All will leave a punctae-hole in the skin. Spiders may leave 2 holes. ...Read more
More than one type.: Spider bites can have variable appearances. It might cause a pink or red bump with no symptoms. Or it could itch or be painful. Venomous spiders may cause significant pain radiating far from the site, cramping, sweating, necrosis of tissue or worse if there is an allergic reaction. ...Read more
ant bite: When an ant bites there is a good chance formic acid will be introduced into the wound. Most likely the formic acid, which is an irritant is causing the itching if it does not go away quickly......See a dermatologist asap. ...Read more
Not a big deal: If you are sure it's a bite and it's painless then i would not worry. ...Read more
Insect bite bruise: Insects often inject a tiny little bit of anti-coagulant 'venom' into the area when they bite you so it is easier for them to suck your blood. This causes a tiny little bruising right in the area as the blood doesn't clot back up as easily, and thus the brusie with scratching. Nothing to worry about. ...Read more
I have an insect bite that looks like a bruise with a red dot in the middle. Should I be worried?
Watch: Watch it for signs of infection with increasing redness and swelling. Watch it for worsening skin darkening or skin ulceration, which can be a sign of a brown recluse spider bite. Do you know what bit you? Depending on where you live, lime disease or other transmitted disease could occur. Most of the time these resolve in a few days. See your doctor if you develop an illness or other concern. ...Read moreSee 1 more doctor answer
Very common: Many insects inject a small amount of anticoagulant into their bits so they can suck out blood more easily before it clots. This causes some minor local bleeding at the bite site, and thus the bruise around the area. No big deal - it will go away in a few days like any other bruise. ...Read more
I have horseshoe size bruise/swelling that appeared on top of spine. I didn't do anything too physical and it's not an insect bite
See doctor: If there is no trauma or insect bite, you need to ask your doctor to take a look at it since the area involved is sizable. ...Read more
Is it troubling you?: Regardless if it is a bruise or an insect bite, if the lesion is troubling you (uncomfortable, painful, unusually itchy, red or swelling) or has remained a bother for an extended period of time then this warrants an evaluation by your local physician. Bruises or insect bites tend to be rather transient and provide a nuisance temporarily--yet your situation seems to have been more persistent. ...Read more
So I know I'm allergic to insect bites and thats what started my legs to itch but it's been over a week and now I'm excessively itchy and have bruises?
I had a blister on lower leg that I popped, now has a bruise on both sides. Bruise darker in middle. Could it be insect bite and what do I need to do?
Advice: It is tough to give advice over the computer without a diagnosis of what the area is. It is best for you to have it examined, and then thee treatment will follow specifically related to the actual diagnosis. Best wishes. ...Read more
Is there any tick or insect bite that can result in a quarter shaped rash on the shin that looks like bruise but isn't raised or painful?
Bite: Need to have that looked at by your doc. ...Read more
I have a large, itchy red and purple bruise on my leg. It started out small and light pink and I thought it was an insect bite. I have lupus too?
I've a rash that looks like insect bites (around 70) mainly on my torso (both sides). Feels like bruises, very tender, aching under them. Any ideas?!
Dermatologist: That would be a huge amount of insect bites and you would have noticed them long before 70 occurred. Tenderness and aching are also unusual features. I recommend a consultation with a dermatologist for proper diagnosis and treatment. A viral illness like pityriasis rosea could be present. ...Read more
Very small purple bruises like blood spots on back of knee, quite itchy. Could it be an insect bite as i have been cutting in bushes?
Itchy spots: It could be but if symptoms persist or worsen get examined ...Read more
I found a bruise on my left breast which has been itch for some time and their seems to be a slightly raised almost insect bite like lump?
Woke up with an insect bite on my inner thigh. Two itchy bumps with bruising around them. Should i see a doctor. Can't see the puncture marks.
Insect bites: Generally speaking there is no need to see a physician for most insect bites. However if there is significant pain at the site or if you start experiencing other body aches/muscle spasms, or if the bite itself starts to ooze or if the bruising starts getting really dark then i would definitely get it checked out. ...Read more
No: Leave it there. The dead upper layer will protect the healing lower layer. ...Read more
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