Causes of rash under the breasts
A rash under the breasts can be quite uncomfortable. An under-breast rash can cause symptoms of itching, swelling, dryness, and even wounds or open sores. There are different causes of breast rash, including inflammation, allergic reaction, chronic skin conditions, or fungus under the breast. Here’s more about the different kinds of rash under the breasts.
Skin folds
A common reason for rash under breasts is intertrigo, which is inflammation of the skin where it folds. Two skin surfaces rubbing together, combined with heat, moisture, or a lack of air circulation, can lead to the development of a rash.