Are Ants Attracted to Blood? Ants Eating Period Blood

Predatory ants have olfactory receptors which are capable of smelling blood around them. Fresh blood attracts ants faster than dried blood that has stayed in the open for some time. Ants like blood because it contains minerals that keep their body fluids stable.

Ants are attracted to blood because it contains proteins that release a pleasant odor to them. They can also feed on fresh, decaying, or decomposing period blood as long as they can get to it. Ants eat both animal and human blood, even if you are not diabetic.

Blood will quickly draw ants out in areas located away from the ocean. Those that feed on plants and meat will all come out to feed on salty minerals in the blood. Ants need salt, and this is not easily found in those places. They will have a strong urge to crawl and eat any spilled blood until it dries up.

Are Ants Attracted to Blood
Ants attracted to blood

Can ants eat blood?

Ants prefer blood while it is still fresh and rich in proteins or minerals they can eat. The scent produced at this stage is also appealing to them. However, if blood stays for a long period of time and dries, ants will not find it attractive.  

In a study at the University of California, ecologists proved that ants sometimes prefer liquids with natural salty blood. This was observed among ants that feed on plants because the carnivorous ones, I.e., fire ants, get enough natural salt from their prey’s flesh.

Dead animals with spilled blood will also attract ants, especially carnivorous ones like army ants. They will come in large numbers and cut chunks of flesh from their prey. They will also feed on the blood, which plays a major role in attracting them as it flows on the ground.

A dustbin that is full of blood-stained dressings and sanitary towels can attract ants. They can eat blood even when it is decaying and decomposing. As much as fresh blood will attract them faster, any odor from rotting blood will also draw them.

Ants eat my period blood
Ants eating period blood

Why do ants eat my period blood?

Ants eat period blood because it contains sodium, which helps balance their body fluids. Once the menstrual blood is released, it starts decomposing immediately. The decaying odor it emits will attract ants.

Period blood attracts more ants when it is still warm and straight from the body. This is because their receptors can easily pic the smell it produces. Ants crawling on used-sanitary towels are enticed by the decaying dead cells in the menstrual blood that produces a foul odor.

As the blood dries, it forms clots and looks like chunks of meat that ants will feed on. In most cases, those are aggressive predator ants looking for food. Period blood is not toxic to ants and cannot negatively affect them because it adds to their basic diet.

Using scented sanitary towels, you can keep ants away from your period blood. Ants do not like any smell that contains perfume chemicals because it interferes with their pheromones. Those scents will destroy them; this is why some sanitary towels are coated with a nice aroma.

Ants and blood myths and facts

Myths have it that ants are only attracted to blood from diabetic people. This is false because every blood contains a good amount of proteins and minerals that can attract ants. Ants will go for spilled blood, and the sugar levels do not influence this behavior.

Ants will also go for any spilled period blood as long as they can get it. It is a myth to assume that they prefer menstrual blood to diabetic people. Sugar levels only relate to diabetes when sugar ants are drawn to your urine.

Sanitary pads should also be well wrapped and tucked away in a dustbin afterward. This will help in keeping bugs and other insects away from the house.

However, ants in your bed can also bite, and it is a myth to think that period blood attracts bed bugs since they prefer sucking blood from their hosts. This can only attract ants, and you must be keen, especially when camping or sleeping on the grass.

Common ants that are usually attracted to blood are those that feed on dead insects and meat. Some prefer plants and decaying leaves, i.e., leaf cutter ants. Those types of ants live in the wild, and they rarely go for blood. Instead, they are found around plants because their activities are based on vegetation.

If there are other food sources in the house, it is rare to find ants crawling in toilet bowls or trash bins while looking for blood. This is only common outdoors where there is no variety of food. Carnivorous ants in the wild will hunt for anything that spells like blood and meat and contains proteins.

Do ants have blood

Ants do not have red blood like animals. They have a fluid called hemolymph that may appear to be yellow or green in color. This fluid circulates in them just like blood does in us. If you squish an ant, this fluid will come out of it in small quantities.

We may refer to blood in ants (hemolymph) as not being red because it does not have red blood cells. The fluid is filled in the ant’s body like a vessel and does not move in veins like vertebrates.

In invertebrates, blood circulates oxygen in the veins, but ants have tiny holes or pores on their bodies. It is through those that they breathe and circulate hair in their bodies. Those microscopic holes are also known as spiracles.

When ants are squished, their body fluids can attract more of them because they produce an odor that signals the rest. This will inform the others of a potential threat, and they will swarm in to help. In most cases, this response can be hostile, and they will come to attack and fight their enemy.


  • Felix Odi

    Hi, I’m an experienced author and content creator with over 18 years of experience as a publisher. Growing up in rural areas of Bristol, FL, I developed an interest in pest control, fish farming, and poultry keeping. Farming is a main activity in the area, and pests are always part of our major setbacks. I had to learn how to get rid of them with simple DIYs.