COVID-19 is an unpredictable disease that can lead to multiorgan dysfunctions. There is a high frequency of venous and arterial thrombosis, among other symptoms,. Spontaneous bleeding in COVID-19 patients has also been described, but rarely, whether or not they are on anticoagulant therapy. We report a case of a 65-year-old female COVID-19 patient treated in our hospital. During the hospitalisation, she experienced sudden, severe pain in the lower part of the abdomen and had signs of hemorrhagic shock. CT of the abdomen and pelvis revealed a spontaneous giant haematoma of the anterior abdominal wall. A surgical procedure was done. We identified spontaneous bleeding in the muscles of the anterior abdominal wall. The patient recovered well. Rapid diagnosis and timely intervention are crucial to ensure a good patient outcome.