Treatment for testicular cancer, including surgery, radiotherapy, and chemotherapy, can lead to various long-term side effects. Surgery may result in infertility, hormonal imbalances, and psychological effects due to changes in body image. Radiotherapy can cause issues such as fatigue, skin reactions, and potential long-term risks of secondary cancers. Chemotherapy may lead to side effects like nausea, hair loss, and increased risk of infections. These side effects can be managed through proper medical monitoring, supportive care, and lifestyle adjustments. For example, fertility preservation options can be explored before treatment, and psychological support can help patients cope with body image changes.