Hello. Im a 38 year old male, I was wondering, Is it possible for skin cancer to appear literally overnight. I woke up one morning and there was a small cyst-like lump where my right pectoral meets my shoulder. This is an area that I see up close everyday, and there was no sign of it there the night before.
Hi, dear. I have gone through your question. I can understand your concern.  You may have some reactive lymph node or some other lesion. Don't worry about skin cancer or any other cancer. Malignant lesion can not occur overnight. It almost always of long-standing. Just consult your doctor and take treatment accordingly.  It's not any cancer. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.