How long does it take for breasts to develop in a male?

Breast development in males, known as gynecomastia, can occur due to various factors such as hormonal changes, weight gain, or certain medications. The timeline for noticeable breast development can vary widely, ranging from a few months to a couple of years, depending on the underlying cause. If the development is due to hormonal shifts during puberty, it may resolve on its own over time. However, persistent or concerning changes should be evaluated by a healthcare professional.