Cryosurgery is a type of surgery that involves the use of extreme cold to destroy abnormal tissues, such as tumors.
The surgery most often involves the use of liquid nitrogen, although carbon dioxide and argon may also be used. When liquid nitrogen has a temperature between -346 and -320°F, it instantly freezes nearly anything that’s in contact with it. In the case of human tissue, it can kill and destroy cells upon contact. This is important when the cells you want to kill are cancerous.
Cryosurgery is typically used for tumors or precancerous lesions found on your skin. However, some tumors inside the body can be treated this way as well.
Cryosurgery, also called cryotherapy, is similar to the technique used when doctors freeze off warts using liquid nitrogen spray.

Cryosurgery risks
Cryosurgery does have risks, but they’re considered lower than other cancer treatments, such as surgery and radiation.
The risks associated with cryosurgery include:
●     blisters
●     damage to nearby healthy tissue or vessels
●     infection
●     a loss of sensation if nerves are affected
●     pain
●     scarring
●     ulcers
●     skin discoloration
Following up after cryosurgery
After most cryosurgeries, you can go home the same day.
After the procedure, you’ll need to care for any incision wounds or places where the skin has been frozen. Care typically involves keeping the area clean and changing the bandages to prevent infection.
You’ll have follow-up appointments in which your doctor will determine how successful your treatment was, if you have any complications, and whether you’ll need more cryotherapy.
Cryosurgery is a procedure that doctors use to treat skin cancer, skin lesions, and… . Extreme cold is used to destroy abnormal tissue such as tumors.
There are some cryosurgery risks such as blisters, pain, and scarring, but the benefits typically outweigh the negatives. A medical professional will determine if you are a candidate for cryosurgery.