My grandpa has these dark waxy bumps on his neck that itch

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While seborrheic keratoses are usually harmless, there are instances when medical advice should be sought. If a growth starts to itch excessively, bleed, or change in size, shape, or color, it is important to consult a dermatologist. These changes could potentially indicate a different condition that requires attention. Persistent symptoms, such as severe itching or bleeding, should not be ignored as they can lead to secondary infections or other complications.
7. How Dermatologists Confirm The Diagnosis
Diagnosis of seborrheic keratosis is usually straightforward and can often be made based on the appearance of the growth. Dermatologists may use a dermatoscope, a special magnifying tool, to examine the skin's surface in greater detail. In some cases, a skin biopsy may be performed to rule out any other conditions, especially if the growth has atypical features. This involves taking a small sample of the skin for analysis under a microscope.
8. Treatment Options: From Freezing To Scraping To Lasers
Treatment for seborrheic keratosis is not always necessary unless the growths are causing symptoms or cosmetic concerns. Common treatment options include cryotherapy, where the growth is frozen off with liquid nitrogen, or curettage, which involves scraping the growth from the skin. Laser therapy is also an option and can be used to vaporize the growth. These procedures are typically quick and performed in a dermatologist's office with minimal recovery time.
9. Home Care, What Not To Do, And When To Skip DIY Fixes 

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