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
Call emergency services for severe uncontrolled bleeding, fainting or difficulty breathing.
These situations are not typical of an uncomplicated skin tag.
And for anyone, someone who:
has lips or skin that look pale, blue, grey or blotchy
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 you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek prompt medical advice after removal if the area becomes increasingly painful, hot or swollen, produces pus, or if redness is spreading.
Fever with these symptoms may indicate an infection.
Seek urgent help if bleeding is heavy or does not stop despite sustained pressure, particularly if you take blood-thinning medicine or have a bleeding disorder.
And for anyone, someone who:
has a wound that is hot, spreading red, or leaking pus
3
Does any of this apply?
Book an appointment
Arrange a routine appointment if:
You are not sure that a growth is a skin tag
It changes noticeably in size, shape or colour
It repeatedly catches, hurts or bleeds
It develops a sore that does not heal
You want to discuss safe removal
Many tags appear and you also have concerns about blood sugar or metabolic health
And for anyone, someone who:
has noticed a lump, a mole that has changed, or unexplained weight loss
The article also says
If a tag is accidentally cut, apply firm, continuous pressure with clean gauze or cloth.
Avoid repeatedly lifting the cloth to check it.
Every sign above is quoted from the sofidex article on Skin tags. If you are not sure, err upward — it is always reasonable to be checked.