Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
A sebaceous adenoma itself almost never causes an emergency.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek prompt medical assessment if a growth:
Enlarges quickly
Bleeds repeatedly without being scratched
Develops an open sore or persistent crust
Becomes increasingly painful, red, or swollen
Returns after removal
Develops on or near an eyelid and affects the eye
Seek urgent care for bleeding that does not stop with firm, continuous pressure or for rapidly spreading redness with fever and feeling seriously unwell after a skin procedure.
3
Does any of this apply?
Book an appointment
Arrange a routine appointment if you have a new skin bump that persists, particularly if it is yellowish, firm, or slowly growing.
An examination is also appropriate if a previously diagnosed lesion is becoming irritated or you would like to discuss removal.
You should also arrange a routine discussion if you have multiple sebaceous growths or a personal or family history of colorectal, uterine, or other Lynch syndrome-related cancers.
This does not mean you have an inherited syndrome, but it may justify a fuller risk assessment.
Every sign above is quoted from the sofidex article on Sebaceous adenoma. If you are not sure, err upward — it is always reasonable to be checked.