Lump under armpit

Yes... Its a hibiscus cyst. She needs to see her doctor and ask for a course of antibiotics to clear it up.

Unfortunately, it can be common for them to become larger and painful - but they are harmless and nothing for her to worry about.

If she is getting them under her armpits... please let her know to expect them on her lady parts, too.

Cancer survivor and health care professional here. Return to the doc sooner than later and have it re-checked and possible referral out for more review. If its growing and becoming an issue better find out what it is. I had a lump on my neck. Appeared on palpation and observation as benign. MRI revealed nothing to worry about. Surgical excision found it to be squamous cell carcinoma ... 7 weeks of radiation / high dose platinum based chemo ie 7 weeks of hell and cured. So I may be a bit over reactionary however the ENT docs and oncologists were spot on with it.
And from the day I got the Dx to the f/u PET scan revealed cancer free I stayed away from my resources, google and played dumb and became 100 %.

The armpit area (axilla) is where a lot of lymph nodes are. Cysts are fairly common any where in the body. They are fluid filled sacks. A malignancy would begin to calcify and would feel hard like a rock and would be irregularly shaped. Cysts are round and squeezable. A needle aspiration (draining it) would give her relief, but if it needs to be removed likely the dermatologist is going to refer her to a surgeon or a plastic surgeon because of the area in which her cyst is located.

How is your sister doing with her lump these days??? 🤔

I’ve had a few lumps in my pits over the years. Most are just sore for a few days to a couple weeks and then go away. Some have gotten a little more boilish…not fun…but they still went away eventually. I suspect your sister will be just fine before much longer.

I just googled it, and it seems that the main cause of something like this is tendonitis. I saw the same thing that you mentioned that cancer would typically not be painful,thank God. But its always best to get it checked

I had a lump in my armpit from a skin irritation from a different deodorant. I switched back and it’s been fine.
Ask her if she changed any deodorant or any kind of body spray.
I hope it all turns out fine.

On the positive side, cancer is not typically "felt", but she should probably see her regular doctor, not a dermatologist as what you're describing is on the "inside". Good luck.

it's a sebaceous cyst or swollen lymph node probably. go to the doctor but they may just advise you to use a warm compress until it shrinks.

I had mine drained yesterday. Not fun and I fear it will need to be removed. Problem is where it's located. It's in my groin. I'll wait until fall to get it out if I can.

No, but I hope for a speedy recovery for your sister.

The armpit is a great place for cysts to form due to moisture and friction. If it has swollen up over night then it is filling with blood/pus and the doctor may lance it to drain it.

It could be actual 'cat scratch fever', I know you won't believe its a thing but look it up on the internets.. does she have cat(s)? I mean who has one cat...?

@Tastyfrzz it's ok. First time anyone besides me has touched me down there in a long time. Might have to change my orientation on my profile. Even it it was with a needle!

No experience… is the lump firm or squishy?

You can’t feel cancer so it’s not that.

I know of someone who had it yes. She [the person who had it] was in quite a bit of discomfort and pain. I think she said it was related to her glands were swelling because of bacteria and her lymph nodes were swollen from fighting off an infection in her arms and legs after