Haemorrhagic Fever, also known as bleeding fever, is a severe and often fatal illness that can cause internal and external bleeding, organ failure, and shock. There are several synonyms for Haemorrhagic Fever, including Viral Haemorrhagic Fever, Hemorrhagic Disease, Viscerotropic Disease, and Bleeding Disorder. These synonyms are often used interchangeably to describe the same disease, which is caused by a range of viruses, including the Ebola virus, Marburg virus, Yellow fever virus, and Dengue virus. Early detection and treatment are crucial for surviving Haemorrhagic Fever, and efforts are being made to develop vaccines and treatments that can reduce the severity of the illness.