What is causing my puffy nipples and hard lumps at 17, and how can I treat it?

What you’re describing sounds like a condition known as gynecomastia, which is common in adolescent males and typically results from hormonal changes during puberty. It could be characterized by puffy nipples and tender breast tissue or lumps beneath the nipple areola complex. This differs from pseudogynecomastia, where the appearance is due to fat deposition without glandular enlargement. In your age group, gynecomastia often resolves on its own over time—usually within a couple of years. It’s great that you’re keeping an eye on it, as that helps in monitoring any changes. If the condition is bothersome or causing significant discomfort or embarrassment, it’s definitely worth discussing with a healthcare professional. Sometimes, an imbalance between estrogen and testosterone is the cause, and a doctor will want to rule out any underlying issues or health conditions. If the doctor suspects another cause, they may order tests or consider medications that address hormonal imbalances, although this is rare in adolescents and is usually only pursued if there’s a persistent issue. As for interventions like surgery, these are typically considered in cases where the condition has been stable for a prolonged period (over 2 years), is causing psychological distress, or hasn’t resolved with other treatments. Surgical intervention is more of a last resort, reserved for when other treatments haven’t been effective or suitable. In the meantime, focusing on maintaining a healthy lifestyle with balanced nutrition might help improve body composition, though it won’t directly address the glandular tissue. Keep track of any changes and be sure to visit a healthcare provider who can tailor advice specific to your condition. And remember, this is a common, usually benign condition and is typically nothing to be alarmed about.