![What is this? It's red and throbbing & has a lump under the skin. Randomly appeared yesterday & it's so freakin painful. It looks way too big to be an ingrown hair. What is this? It's red and throbbing & has a lump under the skin. Randomly appeared yesterday & it's so freakin painful. It looks way too big to be an ingrown hair.](https://preview.redd.it/vaqjqh9ftp251.jpg?auto=webp&s=0b84e2a45cc57157f95ce6d50f0dc74bfc399b8d)
What is this? It's red and throbbing & has a lump under the skin. Randomly appeared yesterday & it's so freakin painful. It looks way too big to be an ingrown hair.
I have a lump on my armpit that looks like a line. I think I've had it for as long as I can remember, and I'm only 17. Could it be cancerous? -
![Painful armpit lump | Causes, Diagnosis and Treatment - Dr. Nanda Rajaneesh | Doctors' Circle - YouTube Painful armpit lump | Causes, Diagnosis and Treatment - Dr. Nanda Rajaneesh | Doctors' Circle - YouTube](https://i.ytimg.com/vi/4OxrELQ4oXs/maxresdefault.jpg)