Sometimes in the practice of a general practitioner, a case may occur when the patient develops petechial rash, hemorrhage in the mucous membranes, joint pain and abdominal pain, after a previous infection of the upper respiratory tract, flu or sore throat. The first elements of the rash appear symmetrically on the lower limbs, and then spread throughout the body. Joint lesions are characterized by severe pain syndrome, swelling.The changes usually affect large joints like knees, ankles, but sometimes even smaller joint surfaces are affected. Hemorrhages in the mesentery and wall of the intestine are the cause of abdominal pain, flatulence, bowel disorders, nausea and vomiting, sometimes with an admixture of blood. All these signs are characteristic for hemorrhagic vasculitis, which is still called the Henoch–Schönlein purpura, purpura rheumatica or anaphylactoid purpura. For the first time, the description of several cases of purpura, associated with arthritis, was given by German physician Johann Schönlein in 1837, and several decades later, Eduard Henoch described this nosology in his scientific work.