An armpit lump may feel small. In other cases, it may be extremely noticeable. Seek medical attention if you have an armpit lump that gradually becomes enlarged, is or isn’t painful, or doesn ...

Painful lumps within the skin, including in your armpit, can be a sign of hidradenitis suppurativa (HS). Inflammation and infection of the sweat glands usually cause HS.

Painful armpit lumps are often due to a swollen axillary lymph node under the armpit. This is usually a sign that the body is fighting an infection, but it can sometimes indicate cancer. Cysts and ...

There are many causes of armpit pain, from a mild muscle strain to more serious conditions like breast cancer. Learn more about causes of armpit pain in this article.

Causes of armpit lumps include cysts, infections, and swollen lymph nodes. Although rare, a lump in the armpit may be a sign of breast cancer.

Causes of pain under the left armpit can range from minor skin infections to nerve damage. Learn about these and other causes, and when to see a doctor.

The armpit is rich in sweat glands and the pores from these can become blocked, which may go on to become infected, causing a sore lump. Many of these do eventually go on their own, so leave it ...

Medically reviewed by Kashif J. Piracha, MD Possible causes of armpit pain range from the minor irritation of clothing, or an infection that goes away quickly, to serious medical issues such as ...

5 harmful deodorant ingredients linked to painful armpit boils. The aluminum compounds, parabens, and other chemicals may be causing your underarm discomfort.

Two weeks ago I found another larger lump in my right armpit, and both areas were very sore when the lumps appeared. The appointment for the breast clinic may take 15 weeks.