A relapsing and remitting illness that may affect any organ system, systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory condition. Autoantibodies and immune complex development are its defining features. The heart is one of the organs that it might impact. In patients with SLE, the immune system’s response to dying cells is aberrant. The diagnosis of SLE is made on the basis of distinctive clinical findings in the skin, joints, kidneys, and central nervous system, as well as serological indicators like antinuclear antibodies (ANA), specifically antibodies to dsDNA. Nonsteroidal anti-inflammatory medicines (NSAIDs), corticosteroids, immunosuppressive medications, and biological agents may be used to treat lupus, depending on the symptoms, findings of blood tests, and the specific organs affected. Here we are reporting a rare case of a male with pericardial tamponade as a first symptom of SLE.