Causes of Painful Lymph Nodes in Armpit

Symptoms of painful under arm lumps

A painful lump in the armpit is usually characterized by lymph nodes or skin. Lymph nodes can drain fluid and waste products that accumulate because of normal physiological functions. Lymph nodes contribute to the immune response to infection. Certain conditions can cause the lymph nodes to become enlarged and painful, and the lymph nodes in one or both armpits may be affected. In addition, underarm skin is susceptible to conditions that cause painful bumps due to the effects of sweat, friction, bacteria, and hygiene practices.

Symptoms that can be associated with a painful underarm lump include:
Rash, itching or burning, Red lines, Signs of systemic disease such as fever, Lesions similar in other areas such as groin

An Overview of Painful, Underlying Pain

Skin condition
Hidradenitis suppurativa: This condition causes chronic inflammation and sometimes even infection.

Infection

Local infections: Because the lymph nodes dry out waste fluids and respond to infections, Skin infections in the arms can cause painful lymph nodes in the armpits.

Systemic infection: Infection throughout the body can cause swollen and painful lymph nodes in many locations, including underarms. Other symptoms may appear, such as fever and fatigue.

Other causes:

Infection and dermatological conditions are the most likely reasons for painful underarm lumps, but there are other causes you should know

Pain syndrome

Chronic conditions characterized by widespread pain and fatigue can cause painful swollen lymph nodes throughout the body, including the armpits. Examples include fibromyalgia and chronic fatigue syndrome.

Cancer

Although rare, painful lymph glands in the armpits can be caused by lymphoma. Where the enlarged lymph nodes are not painful but may become very painful after alcohol consumption.