What causes bumps on eggshells (photo)?

Discussion in 'Pictures & Stories of My Chickens' started by ChickChickChicky, Jan 31, 2012.

  1. ChickChickChicky

    ChickChickChicky Chillin' With My Peeps

    Dec 22, 2011
    Greater Kansas City, MO
    What causes the large, irregular bumps on the exterior of eggshells? Sometimes there are no lumps, sometimes only one, sometimes several. I suspect that these eggs are coming from one of my Rhode Island Reds who is approaching 2 years old (I think). She still lays nearly every day and has no other problems that I'm aware of.

  2. Fred's Hens

    Fred's Hens Chicken Obsessed Premium Member

    It is just the processing of calcium, I believe. From time to time, chunks of calcium get deposited on some of our eggs too. It isn't a constant, so there is just no way of knowing for sure. All one can do is speculate. It doesn't seem to be serious matter.
  3. b.hromada

    b.hromada Flock Mistress

    [​IMG] I agree.

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