Peachy sputum is a common clinical manifestation of pulmonary schistosomiasis. Lung schistosomiasis, also known as pulmonary schistosomiasis, is an acute or chronic endemic parasitic disease caused by Schistosoma haematobium. The parasites are mainly found in the lungs, with cough and peachy sputum as the main manifestations, but also in various tissues and organs, such as the brain, spinal cord, gastrointestinal tract, abdominal cavity and subcutaneous tissue, producing corresponding symptoms. The clinical manifestations are also diverse. The incubation period is from a few days to 20 years, mostly within 1 year. How to diagnose rotten peach-like blood sputum? The clinical manifestations are also diverse. The incubation period is from a few days to 20 years, mostly within 1 year. According to the main organs it invades, it can be clinically classified into 4 types: 1. The lung is the most common parasitic site of Schistosoma weissei, and cough, bloody sputum and chest pain are most common. If it is accompanied by necrosis of lung tissue, it is rotten peach-like blood sputum. When pulmonary schistosomes migrate into the chest cavity, it can cause chest pain, exudative pleurisy or pleural hypertrophy. Schistosoma sichuanum causes more chest pain and pleural effusion, but less coughing and bloody sputum. 2, abdominal type with abdominal pain, diarrhea, hepatomegaly as the main manifestation. Abdominal pain is most common in the right lower abdomen and varies in severity. There may be diarrhea with brownish-brown pus-blood stool, urgency, pressure pain around the umbilicus, and occasionally nodules or masses can be found. Worm migration in the abdominal cavity may cause pneumoperitoneum or extensive inflammatory adhesions. Schistosoma sichuanum often invades the liver and forms eosinophilic granulomas in the liver. 3.Nodular type is most common with subcutaneous or muscular nodules, and about 20% of patients with schistosomiasis have this sign. They are mostly located in the subcutaneous muscles between the lower abdomen and the thighs. Adult eggs, eosinophils, and Charcot-Redden crystals can be seen in the nodules. The main manifestation of schistosomiasis in Sichuan is wandering, subcutaneous nodules or masses, the incidence of which is 50% to 80%, nodules and masses 1-6 cm in size, the preferred site is the abdominal wall, followed by the chest wall, waist and back and inner thighs. 4, chest type is mostly seen in children and adolescents. In the early stage, there may be headache, vomiting, meningeal irritation signs and intracranial hypertension, and later there are localized symptoms such as epilepsy, hallucinations and sensory abnormalities. If the spinal cord is invaded, there are symptoms such as spinal cord compression, lower limb sensory and motor abnormalities, urinary retention, and paraplegia. The diagnosis should be considered based on epidemiological data, especially if one has been to the endemic area and has the opportunity to swallow live cysts; has the above clinical manifestations, chest X-ray signs, and increased eosinophilia. Biopsy of sputum, stool, and subcutaneous nodules to find eggs or worms can confirm the diagnosis. Immunological examination has diagnostic significance for those who are negative for pathogens.