CryoPen FAQs


Cryosurgery is the controlled destruction of unwanted tissue by the precise application of extreme
cold. The process is called cryo-necrosis, tissue destruction by freezing. Rapid freezing to 27 °C and
more will produce cryonecrosis in all benign human tissues and ice crystals will form. The ice crystals
break the cell membrane, destroy the cells organelles and protein matrixes. Water then rushes into
the surrounding area causing blistering and disruption of the local blood supply

Cryosurgery is quicker than other treatments and patients can be in and out in seconds. It requires
no anaesthesia and has minimal scaring. There are no limitations on activity except to protect the
area from damage or abrasion, they can work, bath, swim, immediately after the treatment. There’s
no cut, no bleeding, no sutures and no risk of infection.

Most unwanted benign skin lesions can be removed such as verrucae, skin tags, solar lentigo, pigmented spots, actinic keratoses, seborrheic keratoses, hemangioma, molluscum contagiosum, condyloma, plantar warts, and more.
Care should be taken when treating areas with very thin skin and areas where the colour is cosmetically important such as face, ears, scrotum and lateral surface of fingers.


Treatment prices are usually starting from £60, depending on the location of the clinic and also the number of lesions to be treated.
A typical freeze on viral infections may last from 5 to 10 seconds for a small flat wart, and up to 45 seconds for a full thickness plantar wart. For general purposes, most lesions take about 2 to 30 seconds.
No preparation is necessary before treatment, unless it is a wart or verruca.
No anaesthesia is needed as the extreme cold causes anaesthesia which allows the treatment to be tolerable.

Consult a Doctor before proceeding with CryoPen procedures if the person being treated has:
• Impaired sensation
• Impaired circulation
• Superficial nerves
• Open wounds
• Skin cancer
• Hypersensitivity to cold
• Cardiac disease.
• No moles should be treated unless approved and assessed by a medical physician.


Yes. However, skin types and location should be considered carefully prior treatment.

Prolonged freezing can cause more destruction of the connective tissue and surrounding vascular and
lymphatic infrastructure. Damage to connective tissue can increase the chance of scarring. Damage
to surrounding infrastructure can prolong healing time.

Both hypopigmentation and hyperpigmentation may occur after cryosurgery, generally last a few months, but can be longer lasting.

Melanocytes are the most sensitive to cold injury. Therefore, they are the most easily damaged with
cryosurgery. Dark skinned patients should consider the risk of permanent loss of pigment.

Yes, however parental consent is required.

Patient concerns

At a penetration rate of 1 mm per 5 seconds, the ice will reach the caudal extent of the lesion after a given amount of time related to the depth of the lesion. From that moment the patient will experience a pain sensation. This may be the moment to stop treatment. There might be a little residual stinging for a few minutes after treatment.
Typically, it leaves the least amount of scarring of any form of lesion removal because it causes the least damage to the connective tissues. Hypopigmented lesion will be noted until this darkens with the new tanning.

Occasionally, a blister might form and persist for op to 5 days. After the lesion scabs over, healing depends on how deep the wound is. Typically, healing takes between 2 – 6 weeks, depending on the length of freeze and location.

Most lesions will respond to a single treatment. However, some deeper lesions may take several aggressive treatments to get results.
For most lesions, cryosurgery is a permanent removal. Some lesions are harder to remove than others.
Both hypopigmentation and hyperpigmentation may occur after cryosurgery. Both generally last a few months, but can be longer lasting. Permanent colour loss can occur in dark skinned patients
There are no limitations on activity expect to protect the area from damage or abrasion. Swimming and showering are not a problem.

If the blister pops, the use of an antibiotic cleaning solutions is recommended. Covering the area with a
bandage also promotes healing.

Follow up should be scheduled in 2-week intervals to observe results, and for further sessions if required.
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