Confused about my sword tail

[Charmaine]

Can anyone tell me why that is growing out of my female's tail? Is she sick?

 

[Fresh2o]

Pics are blurry but it almost looks like an anchor worm. Really difficult to tell.

 

[Charmaine]

Pics are blurry but it almost looks like an anchor worm. Really difficult to tell.

Thank you so much for your answer. I put meds in my tank. Hope to save my fish