Spiders in the Home: Which Ones Are Harmless?

Most spiders found indoors are harmless, and many help by eating other insects.

The short answer

Most house spiders in India are harmless to people and eat flies, mosquitoes and other pests. A few species can give painful bites, but serious bites are rare. Leave harmless spiders alone or remove them gently with a cup and card. Reduce numbers by reducing other insects, clearing clutter and sealing gaps. See a doctor for severe or unusual reactions after a bite.

Usually harmless

• Common house spiders and cobweb spiders.
• Jumping spiders.
• Daddy-long-legs (cellar) spiders.

Be careful with

• Large wandering spiders, if handled.
• Any spider that bites repeatedly or causes severe reactions.

Managing them

1. Reduce other insects that attract spiders.
2. Declutter storage areas.
3. Remove webs with a broom or vacuum.
4. Seal gaps and fit screens.

When to call a professional

See a doctor for a severe bite reaction. Call a pest professional for heavy infestations.

Frequently asked questions

Are spiders dangerous?

Rarely.

Should I kill them?

No need for harmless ones.

Do sprays help?

Only short-term.

What if bitten?

See a doctor if symptoms are strong.

This guide is part of IPest's complete resource on household pest control. For identification help, prevention and treatment options, see our full household pest control guide for Bangalore.