Yes, gynecomastia can affect one breast more than the other, resulting in
asymmetrical breast development. This is known as unilateral gynecomastia. It can occur due to differences in hormonal levels or due to other factors such as injury or infection. In some cases, one breast may have more glandular tissue than the other, leading to uneven breast growth. Unilateral gynecomastia can be addressed with surgical treatment, which can help to reduce the size and shape of the affected breast and create a more symmetrical appearance. However, it is important to consult with a qualified healthcare provider to determine the underlying cause of the condition and the most appropriate treatment approach.