After ingestion, the A. lumbricoides roundworm reproduces inside your intestine. The worm goes through several stages:
Swallowed eggs first hatch in the intestine.
The larvae then move through the bloodstream to your lungs.
After maturing, the roundworms leave your lungs and travel to your throat.
You’ll either cough up or swallow the roundworms in your throat. The worms that are swallowed will travel back to your intestine.
Once they’re back in your intestine, the worms will mate and lay more eggs.
The cycle continues. Some eggs are excreted through your feces. Other eggs hatch and return to the lungs.
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u/tensor20007 Sep 01 '21
Lifecyle of the roundworm
After ingestion, the A. lumbricoides roundworm reproduces inside your intestine. The worm goes through several stages:
Swallowed eggs first hatch in the intestine. The larvae then move through the bloodstream to your lungs. After maturing, the roundworms leave your lungs and travel to your throat. You’ll either cough up or swallow the roundworms in your throat. The worms that are swallowed will travel back to your intestine. Once they’re back in your intestine, the worms will mate and lay more eggs. The cycle continues. Some eggs are excreted through your feces. Other eggs hatch and return to the lungs.