SRS and SBRT are highly precise radiation techniques used to treat small or difficult-to-reach tumours. SRS is mainly used for brain tumours, while SBRT targets tumours in the lung, liver, spine, and pancreas. These therapies deliver very high doses of radiation in fewer sessions, focusing on the tumour while sparing healthy tissue. Treatment is guided by advanced imaging technologies for exact localisation. The non-invasive nature of SRS/SBRT reduces the need for surgery and shortens recovery times. These techniques are effective for primary tumours, metastases, and recurrent cancers. They are often used in patients who are not candidates for traditional surgery. The precision of SRS/SBRT allows for nerve-sparing and organ-preserving treatment. Side effects are typically minimal compared to conventional radiotherapy. Planning involves multidisciplinary collaboration, including radiation oncologists, physicists, and imaging specialists. Patients benefit from outpatient treatment with fewer hospital visits. SRS/SBRT has become a cornerstone in modern radiotherapy, offering hope for complex cancers. Follow-up and imaging ensure long-term tumour control and patient safety.