Thyroid black filled icon
Butterfly shaped thyroid gland with two lobes wrapped around a ringed trachea
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About the Thyroid black filled icon
Two rounded lobes sit either side of a segmented windpipe and join at a narrow isthmus, forming the butterfly outline of the thyroid gland. Short curved dashes across each lobe suggest follicular tissue. Built for endocrinology clinic pages, hormone and metabolism explainers, medical school slide decks, lab test result screens and patient education leaflets on hypothyroidism.
The trachea runs the full height of the frame with evenly spaced cartilage rings, and the lobes are widest at the top third, matching real anatomical proportion. It pairs with kidney, liver and adrenal gland icons. Use it at 48 px or larger so the tissue dashes stay distinct.
This is the solid black filled version of the thyroid icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
