Anjali Mehta Anjali Mehta Asked 5 months ago

How does a positive tb skin test look like?

Got my TB skin test yesterday, and the spot feels a bit itchy and swollen today. I'm just wondering what a positive reaction really looks like on the skin. How big or red should it be?

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7 answers

Ritu Sharma Ritu Sharma Joined Mar 2026 5 months ago
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From what I know, a positive test results in a raised, firm bump at the injection site rather than just red skin. I always prefer being cautious with health tests, so it is best not to guess the result yourself. Please let the clinic staff examine it to be absolutely sure.

Mariyam Joseph Mariyam Joseph Joined May 2026 5 months ago

A positive Mantoux test shows a hard, raised area of swelling called induration, usually measured in millimeters. Simple redness or itching doesn't automatically mean it is positive. Make sure you return to the clinic exactly between 48 to 72 hours so we can measure it accurately.

Preeti Saxena Preeti Saxena Joined May 2026 5 months ago

I totally get it, waiting for test results can be so stressful. A positive result usually looks like a raised, hard bump on your forearm where they did the prick. Please try not to worry and just let your healthcare provider take a look and guide you.

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Pooja Mehta Pooja Mehta Joined Feb 2026 5 months ago

It basically looks like a firm, raised little bump on your arm! 🌸 Just remember, only a trained healthcare professional can measure it properly to tell you if it is positive. Don't worry, just head back to your clinic for a quick check!

Anil Gupta Anil Gupta Joined May 2026 5 months ago

It looks like a hard, swollen bump on your arm. Since you have to go back to the clinic to get it read, plan your travel and timing properly so you don't have to pay for a second test if you miss the 72-hour window. It's a cheap test but only if done right.

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Vikas Patel Vikas Patel Joined Jan 2026 5 months ago

A positive test is characterized by a firm, raised swelling on the forearm. Do not try to rub it or change your diet to soothe it, as it won't affect the physical skin reaction. Just visit your doctor within the correct time frame to get an accurate reading.

Rajiv Malik Rajiv Malik Joined Jun 2026 4 months ago

Haan, skin test positive hone par wahan ek hard aur thoda raised bump ban jata hai, sirf skin red hona positive nahi hota na. Bilkul tension mat lo, aur clinic ja kar doctor se hi measurement karwao, wohi sahi batayenge.

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