What does it mean if there is a painful lump under the armpit?
Mar 28, 2023
Source: Cainiu Health
Dr. Li Feng
Introduction
Painful lumps in the armpit are commonly caused by folliculitis, infected sebaceous cysts, swollen lymph nodes, accessory breast hyperplasia, lipomas, fibromas, and other conditions. It is recommended to maintain proper care of the affected area and minimize irritating factors. You should visit a general surgeon at a hospital for an accurate diagnosis. Once the underlying cause is identified, follow your doctor's instructions for appropriate medication, and if necessary, undergo surgical treatment.
In general, pain from lumps in the armpit is commonly caused by folliculitis, infected sebaceous cysts, or swollen lymph nodes. It is recommended to maintain proper care of the affected area, minimize irritating factors, seek medical examination at a hospital, follow medical advice for appropriate medication, and undergo surgical treatment if necessary. Specific causes are analyzed as follows:
1. Folliculitis
During hot summer weather, the armpit often remains moist and sweaty. Scratching can damage the skin, allowing pathogenic bacteria to invade and trigger an inflammatory response, resulting in one or more red bumps locally. Stimulation from sweat or arm movement may worsen the pain. Under a doctor's guidance, topical anti-infective medications such as fusidic acid ointment or mupirocin cream can be applied for treatment.
2. Infected Sebaceous Cyst
When sebaceous secretions cannot properly drain through the hair follicle opening, they accumulate locally and form a cyst. If the cyst ruptures, it creates an open wound, allowing bacterial invasion and subsequent inflammation, leading to local swelling and pain. Surgical removal of the cyst may be considered when necessary.
3. Swollen Lymph Nodes
This may be related to infection, tumors, reactive hyperplasia, or abnormal cellular metabolism. For example, conditions such as breast tissue disorders, inflammation, or tumors that spread to the axillary lymph nodes can easily cause pain.
In addition, other conditions such as accessory breast tissue proliferation, lipomas, or fibromas may also cause similar symptoms. It is advised not to use medications blindly, as inappropriate treatment could worsen symptoms. Patients should visit the general surgery department at a hospital for proper diagnosis, identify the underlying cause, and receive treatment according to medical advice.
