Medically reviewed by Chris Vincent, MD Brown recluse bites often start with mild redness followed by pain and itching. The ...

The deadly 3.54-inch-long spider Atrax christenseni is among the most dangerously venomous spiders for humans.

Spider bites are typically red and swollen and may have blisters, pus, or discoloration. It's almost impossible to identify a ...

Spider bites cause a red inflamed bump on your skin, which can sometimes be itchy or painful. More serious bites can cause blistering and blanching — when the skin appears white or pale — says ...

Black widow spider bites usually involve two puncture wounds and may cause a blister. Their venom contains a neurotoxin that usually causes pain at the bite, which then spreads to the chest ...