A black widow spider bite typically looks like two small, faint red puncture marks at the site of the bite, which may be surrounded by mild redness and swelling. The bite area can develop a blister or an itchy rash, and sometimes the skin around the bite turns bluish-gray (cyanosis)

. Initially, the bite may feel like a sharp pinprick or may go unnoticed. Within 15 minutes to an hour, pain usually starts at the bite site and can spread as a dull muscle ache to other parts of the body, especially the abdomen, chest, back, and shoulders. The bite site may swell and turn red, sometimes forming a target-shaped lesion

. Other symptoms associated with a black widow bite include:

• Severe muscle cramps and stiffness, especially in the abdomen and back
• Nausea and vomiting
• Heavy sweating
• Headache
• Difficulty breathing
• Weakness or shaking
• Increased blood pressure and heart rate
• Droopy or swollen eyelids
• Profuse sweating and itchy skin rash

The severity of symptoms depends on factors such as the amount of venom injected, the bite location, and the individual's age and health. Children, elderly people, and those with compromised immune systems are at higher risk of serious reactions

. In summary, a black widow spider bite looks like two tiny red fang marks with surrounding redness and swelling, possibly blistering, followed by intense pain and systemic symptoms affecting muscles and the nervous system

. If bitten, medical attention should be sought promptly.