Yes, if the cyst is hemorrhagic.

it will not be harmful during the pregnancy no.

A proteinaceous cyst of the kidney is also known as a renal cyst. The cyst will have hemorrhagic fluid as well as lesions on the kidney.

a hemorrhagic follicle is sometimes called a chocolate cyst, and it occurs in the ovaries, I believe after ovulation. It is actually a bit of endometriosis inside of the ovary. I had this come up in an ultrasound and my Dr diagnosed me with endometriosis 1 year later, though not from the results from my ultrasound but from other signs and symptoms. My Surgeon removed the hemorrhagic follicle from my ovary when I went in for endometriosis surgery. I am not a Dr but a patient with endometriosis.

As much as 51% of all hemorrhagic cystitis (inflammation of the bladder and of the tubes that carry urine to the bladder from the kidneys) in American and Japanese children can be attributed to adenovirus infection. In your case, you need to take some hemostatics and then cure your cystitis after. Commonly, herbal medicine Diuretic and anti-inflammatory pill or antibiotics are usually used for your disease. And the natural herbal medicine is more popular in patients.