Brown spots densely scattered on the side of the breast

Brown spots densely scattered on the side of the breast are usually caused by either physiological or pathological factors, such as tinea versicolor or common warts. The specific analysis is as follows:

I. Physiological Factors

During pregnancy and lactation, the breast undergoes physiological hyperplasia and secretion, making it more sensitive and vulnerable. This may lead to the appearance of dense brown spots on the side of the breast. This is a normal physiological phenomenon and does not require special treatment.

II. Pathological Factors

1. Tinea Versicolor (Pityriasis Versicolor)
This condition primarily affects the area around the breasts. It presents as light brown, dot-like macules with surface scaling, occasionally accompanied by itching. It is mainly caused by infection of the stratum corneum by Malassezia fungi, leading to the aforementioned symptoms. Patients may use selenium sulfide shampoo or itraconazole as directed by a physician to relieve symptoms.

2. Common Warts
Common warts are usually caused by human papillomavirus (HPV) infection and can occur around the breasts. They appear as tiny, pinhead-sized papules, ranging in color from grayish-brown to brown, causing the described symptoms. Patients may apply topical medications such as tretinoin cream or fluorouracil ointment as prescribed by a doctor.

In addition, this symptom may also be associated with fibroadenoma, fibrocystic breast disease, or even breast cancer. It is recommended that patients seek medical evaluation at a hospital's dermatology or breast surgery department.