Today I went for a blood test for thyroid. When they pricked my needle, I saw watery blood on my hand. This happened for the first time. I am not on any blood thinner medicine. What could be the reason?

Answered by 1 Apollo Doctors

Dr Hema Pratima

General Practitioner

MBBS
Fellowship in Diabetes Mellitus
9+ Yrs

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Watery blood could be due to hydration, vein fragility, or lab technique. Not a major concern if it happened once. No link with thyroid or medications unless recurring. Maintain good hydration before tests. If frequent, consider checking Platelet Count or CBC.

Dr. Hema Suggests...

Take a COMPLETE BLOOD COUNT (CBC) Test

Book COMPLETE BLOOD COUNT (CBC) Test

Answered 17/09/2025

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