The tiny things in this photo look very much like “seed ticks” — the larval stage of ticks. The image is strikingly similar to documented photos of larval ticks covering clothing.
What are “seed ticks”?
They are newly hatched tick larvae. Unlike adult ticks, larvae are extremely tiny—often around 1 mm—and can appear almost like moving specks of dirt. A particularly alarming feature is that they can occur in large clusters, sometimes hundreds at a time.
This can happen when someone walks through vegetation or leaf litter near where a female tick has laid eggs. The larvae can climb onto shoes and clothing as a person passes. Ticks don't fly or jump; they generally wait on vegetation or near the ground and grab onto a passing host.
Why are there so many?
That's the disturbing part. Tick eggs can hatch in large groups, so you may encounter what looks like a "swarm" of tiny insects.
If you walk through the wrong patch of grass, brush, or woodland, hundreds of larvae can end up on your lower legs and clothing. A documented BugGuide example shows seed ticks on pants with individual larvae approximately 1 mm in size.
The creatures in the photograph are so small that it's easy to mistake them for seeds, dirt, or pieces of plant material.
What should you do if this happens?
If you ever find something like this on your clothing after a walk, don't ignore it.
- Move away from the area where you encountered them.
- Carefully remove your outdoor clothing and keep it away from other clothing and furniture.
- Inspect your entire body carefully, especially ankles, behind the knees, waist/groin area, armpits, and hairline. Ticks can crawl upward after getting onto clothing.
- Check children and pets who were outside with you.
- Remove any attached ticks promptly.
- Clean and launder your clothing appropriately; heat from a dryer can be useful for killing ticks on clothing.
- Monitor yourself for symptoms after a known tick exposure and seek medical advice if you develop concerning symptoms.
Wearing light-colored long pants tucked into socks when walking through tick habitat makes ticks easier to spot and makes it harder for them to reach your skin.
One important detail
A photograph alone cannot establish the exact tick species, and there are other tiny organisms and plant materials that can look similar. But the combination of their size, shape, apparent legs, and the enormous number attached to the fabric makes larval ticks a strong possibility.
So the dramatic Facebook caption is actually based on something that can happen: someone can go for an ordinary walk and return home with their pants covered in hundreds of tiny seed ticks.
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