When I get bloody noses I have the tendency to have blood clots come out of my nose. Why?

Nosebleed Injury: Causes Sudden trauma to the nose, very cold or very dry air, fragile blood vessels, nasal sprays, strenuous exercise, or picking the nose cause most nosebleeds. Recurrent nosebleeds may be a symptom of an underlying disorder such as high blood pressure, taking large doses of aspirin or blood-thinning medication, allergies, a bleeding disorder, or a tumor of the nose or sinuses. Most nosebleeds come from blood vessels in the front of the nose. Some are caused by bleeding from the back of the nose into the throat (posterior bleeding) -- these are more difficult to control and almost always require medical attention.

Yes this is what happens when blood flows in the sinus cavity (not necesarily the nose) I have bad sinuses and sometimes the medication that dries out the mucus causes dryness and cracking in the sinus cavity, and when I blow my nose there are chunks of blood mixed with the mucus. A little blood goes a long way when mixed with mucus.

I do that too. It's bad sinus.

Dont' worry, those aren't clots! I sometimes get nose bleeds too so I can relate What you're seeing is mucous (snot) that has blood in it. Blood is like paint, just a little bit can look like a lot. If you take aspirin, stop... it's a blood thinner, and I was taking it daily as heart attack/stroke prevention.... When I stopped the aspirin, the nose bleeds also stopped.