What causes a hard lump inside the chest that hurts when pressed, and what should I do about it?

Under normal circumstances, the presence of a hard lump in the chest that is painful upon pressing may be caused by hormonal fluctuations, milk accumulation, mammary gland hyperplasia, mastitis, or fibroadenoma of the breast. Patients should seek symptomatic treatment under the guidance of a physician. Specific analyses are as follows:

1. Hormonal Changes

Women may experience a hard lump in the chest accompanied by tenderness before and after menstruation due to increased levels of estrogen and progesterone. Symptoms usually subside after menstruation ends. Applying warm compresses or massage may also help relieve discomfort.

2. Milk Accumulation

In lactating women, excessive milk production combined with incomplete removal by the infant can lead to localized milk accumulation, resulting in a lump and pain upon pressure. Under medical guidance, massage techniques can be used to express the accumulated milk.

3. Mammary Gland Hyperplasia

Hormonal imbalances may cause abnormal proliferation of breast tissue, leading to lumps within the breast that are often tender when pressed—commonly described as a painful lump in the chest. Symptoms typically worsen before menstruation. Under medical supervision, oral medications such as Rupixiao tablets or Xiaojin pills may be prescribed for treatment.

4. Mastitis

Inflammation in the breast tissue, triggered by infection, may cause blockage of milk ducts and formation of lumps. Repeated inflammatory stimulation leads to exudation of inflammatory factors, which irritate nerves and cause local pain—resulting in a painful lump in the chest. Prompt treatment under medical guidance with anti-inflammatory medications such as levofloxacin hydrochloride capsules or roxithromycin capsules is necessary.

5. Fibroadenoma of the Breast

Benign proliferation of local breast tissue may form fibroadenomas, presenting as a lump in the chest accompanied by tenderness upon pressure. Some patients may also experience nipple discharge. It is important for patients to visit the hospital promptly for breast ultrasound examination and, if needed, surgical removal of the lesion for treatment.

When a lump is detected in the chest, it is important not to panic excessively. Timely medical evaluation and treatment are recommended. Regular physical activity in daily life can help promote metabolism and overall health.