A hard lump the size of a mung bean in a woman's armpit

Under normal circumstances, the appearance of a pea-sized hard lump under a woman's armpit may be caused by factors such as lymphadenitis, axillary hidradenitis, or mammary gland hyperplasia. Different treatment methods should be selected based on the specific underlying cause. The details are as follows:

1. Lymphadenitis

The lymph nodes under the armpit are important immune organs. If these lymph nodes become infected or inflamed, hard lumps may develop. It is important to keep the armpit area clean and dry and avoid excessive sweating. As directed by a physician, topical application of anti-inflammatory ointments such as mupirocin ointment or erythromycin ointment may be used.

2. Axillary Hidradenitis

Axillary hidradenitis is a common skin condition that can also lead to hard lumps under the armpit. It is advisable to use mild cleansers to wash the armpit area and avoid harsh chemicals. Under medical guidance, non-steroidal anti-inflammatory drugs (NSAIDs) such as enteric-coated aspirin tablets or acetaminophen tablets may be taken for treatment.

3. Mammary Gland Hyperplasia

Breast tissue can sometimes extend into the armpit area. When this tissue undergoes hyperplasia, it may form a hard lump. Further examination and treatment at a hospital are necessary. Diagnostic procedures such as breast ultrasound or mammography may be required, and in some cases, surgical removal may be needed.

In addition, lipomas can also form hard lumps under the armpit. It is recommended to seek timely medical attention for professional diagnosis and treatment.