Why Do Mosquitoes Bite Some People More Than Others?

If you’re one of the unlucky few who get attacked by mosquitoes every summer, you’re probably wondering why mosquitoes like you so much. There’s a lot of different theories as to why, but the honest truth is that it’s actually a combination of things. 

Blood Type

In 1972, scientists first discovered that mosquitoes are, in fact, attracted to a certain blood type. People with Type O blood are the favorite pick of mosquitos. In this test, mosquitos were twice as likely to feed from someone with Type O blood than someone with Type A. 

Your skin releases certain chemicals and scents that tell mosquitos what blood type you are. This is how mosquitoes can tell if you’re their preferred blood type.

We know it’s a bit of a bummer if you’re an unfortunate soul with Type O; you can’t stop having a certain blood type! However, there are some other reasons mosquitoes might be attracted to you.


Mosquitoes can track humans by sniffing out the carbon dioxide we release. If you have a higher metabolism, you’ll produce more carbon dioxide. That means you’re more attractive to mosquitos if you are pregnant, workout and diet often, or are someone with a higher resting metabolism. However, the biggest reason people will have a higher metabolism is just from genetics. 


Thankfully, although you can’t change your genetic makeup, you can change your clothes. Mosquitoes are attracted to darker colors. 

You’ll also be less likely to be bitten if you wear more clothing. Wearing more clothing in the summer isn’t an option for a lot of people. Especially if you live somewhere particularly hot, or have issues with heat. However, this tip may be useful to someone with fair skin, or genetically at-risk for melanoma.  

Wearing looser, lighter, and brighter clothing that covers your body more will reduce mosquito bites. 

What To Do If Mosquitoes Are Attracted To You

If you genetically cannot stop mosquitoes from liking you, you can always use a repellent like DEET. There’s also lots of DIY bug repellants you can make that can reduce mosquito bites, and may even soothe them! 

Generally, anything that’ll mask your natural smell should help. If you find that your home is heavily infested by mosquitoes, call an exterminator to see if they can install a device like the In2Care system to eliminate mosquitoes for good. 

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