Seborrheic Keratosis (Warty Age Spot)

Serving Hamilton, Stoney Creek, Grimsby and surrounding areas

Seborrheic Keratoses:

  • Are areas of thickened skin which can develop anywhere on the skin’s surface except for the palms and soles
  • Are not the same as moles
  • Are not cancerous and never develop into a skin cancer
  • May be tan, pink, brown or even black in colour
  • May be flat or raised
  • Are not due to the Human Papilloma (HPV) wart virus
  • Are not due to diet or sun damage
  • Usually appear as the skin matures
  • Are not contagious
  • May get gradually larger with time and do not disappear spontaneously
  • May sometimes look like a skin cancer
    • If you have a new spot on your skin, be sure to show it to your doctor

Liquid Nitrogen:

  • The treatment that I use most often is liquid nitrogen, which is a cold, freezing spray
    • The spray is applied to each spot from a thermos-like spray bottle
    • Each spot is sprayed for a few seconds
    • The treatments sting and the area treated may remain sore for 1 to 2 days
    • The treatment may produce blisters
      • This is normal
      •  If the blisters are painful, pop them with a sterile needle to let the fluid out
    • The treated area requires no special treatment but an antibiotic ointment may be applied daily if desired
    • You may bathe normally
    • A bandage is not necessary, but may be worn if desired

Surgical Removal:

  • In some cases it is best to remove the seborrheic keratosis with a small surgical procedure
    • The skin adjacent to a seborrheic keratosis is injected with a local anesthetic to numb the area
    • The lesion is removed, and the base treated with a medication or electrocautery, so that it does not bleed
    • Stitches are not necessary
    • The removal is not painful
    • After the procedure you may bathe normally
    • For 2 weeks after the procedure, apply a small amount of antibiotic and change the bandage daily
    • After a seborrheic keratosis has been removed a crust or scab will form
    • This will heal and leave a pink mark that will gradually fade
    • After the removal, there may be a residual white mark
    • There is a small chance that the seborrheic keratosis could grow back
  • Treatment of seborrheic keratoses is not covered by OHIP or private health insurance
  • A referral from a doctor is necessary to make your first appointment

Seborrheic Keratoses – Back

Seborrheic Keratosis – Warty Type

Seborrheic Keratoses – Dermatosis Papulosa Nigra Type

Seborrheic Keratoses – Dermatosis Papulosa Nigra Type

Seborrheic Keratosis – Waxy Type

What if you are interested to learn more?

If you would like to learn more please phone the aesthetic centre directly at (905) 549-7873 to book a free consultation with one of our knowledgeable technicians or

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