A hard lump under the armpit after childbirth, not painful or itchy

After childbirth, a hard lump under the armpit that is neither painful nor itchy may be caused by physiological factors, or by pathological conditions such as swollen lymph nodes or mastitis. Treatment may include general management and medication. Specific details are as follows:

I. Physiological Causes

If a patient frequently consumes spicy or greasy foods or wears tight, non-breathable underwear, this may irritate the underarm area, leading to redness, swelling, or discomfort. It is recommended to wear loose, comfortable undergarments and maintain good hygiene through regular changing and washing.

II. Pathological Causes

1. Swollen Lymph Nodes

This is usually due to reactive proliferation of lymphocytes and histiocytes in the lymph nodes triggered by various injuries or stimuli, which may present as a hard lump. Under a doctor's guidance, medications such as Yanlixiao Capsules or Amoxicillin Capsules may be used for treatment.

2. Mastitis

This condition is typically caused by overfilled breasts or secondary infection due to blocked mammary ducts, resulting in a hard lump under the arm, often accompanied by pain. Medications such as Rupixiao Tablets or Tanshinone Capsules may be taken as directed by a physician.

In addition to the above causes, such lumps could also result from fibroadenoma, breast lipoma, or breast hemangioma. Adequate rest should be maintained and excessive fatigue avoided.