Tarantulas look scary, but for most people they are not very dangerous. They can bite and cause pain or irritation, but serious or life‑threatening reactions are very rare in healthy humans.

Are tarantulas dangerous to humans?

  • Most common pet and North American tarantulas have venom that is low in toxicity to humans and is often compared to a bee sting in effect.
  • Bites usually cause localized pain, redness, and swelling, and may throb for hours, but they almost never cause severe systemic illness in non‑allergic people.
  • The biggest medical concern is for people who are allergic; in rare cases, a bite could trigger more serious symptoms like trouble breathing or anaphylaxis, similar to severe insect‑sting allergies.

What about their hairs and venom?

  • Many New World tarantulas (common pets) have “urticating hairs” on their abdomens that they can flick; these hairs can irritate skin, eyes, and airways, causing itching, rash, or inflammation.
  • Getting these hairs in the eyes can occasionally cause more serious, sometimes permanent, eye damage, and usually requires medical care.
  • Venom is used mainly for subduing prey and defense; tarantulas generally avoid wasting it on humans unless they feel very threatened.

Keeping a tarantula as a pet

  • Common pet species are generally considered safe if handled responsibly; they are far less likely to cause serious injury than many traditional pets like dogs or even cats.
  • The main risks for keepers are bites, irritating hairs, and accidental falls that can seriously injure the spider, not the human.
  • Basic precautions—no face contact, washing hands after contact, and avoiding provoking or mishandling the spider—keep risk very low.

Latest and forum-style chatter

  • Recent educational and medical write‑ups still emphasize that tarantulas are venomous but usually only cause mild, short‑lived symptoms in humans, with rare exceptions in more potent Old World species.
  • In hobby forums, enthusiasts often compare tarantulas to any other pet that can bite or scratch: there is some risk, but with proper respect and care, it’s seen as manageable and relatively small.

Bottom line (TL;DR)

  • For most healthy people, tarantulas are not “deadly spiders” and are unlikely to cause serious harm, though bites and hairs can be painful or irritating.
  • Treat them with respect, avoid rough handling or face contact, and seek medical advice if a bite causes severe symptoms or if hairs get into the eyes.

Information gathered from public forums or data available on the internet and portrayed here.