The jumping spider is the most likely spider to bite a human in the United States, according to the California Poison Control System. Jumping spider is a name given to various species of spiders that jump or leap towards their prey. In order for a jumping spider to bite a human it must feel threatened. Symptoms of this type of bite are similar to any other insect bite and are not usually serious.
Pain
When the spider bites a human it punctures the first layer of skin. This wound can be painful both as it is occurring and for minutes or hours later.
Itching
Depending on the species of spider a venom will be injected into the skin of the human during the bite. The result is itching at the site of the bite and the tissues nearby.
Visible Wound
The site of the bite will likely swell significantly, making the wound prominent. Skin tissues surrounding the area will become red. The University of Maryland Medical Center suggests that serious spider bites, most likely not caused by a jumping spider, can cause a rash or unusual discoloration of the skin.
Illness
Illness from a spider bite is not very common but is the result of the individual's immune response to the spider's venom. Symptoms that may occur and last for one to four days include pain in the muscles and joints, fever, headache, chills, nausea and vomiting.


