Long-term diarrhea in pigs can be a sign of swine dysentery, a serious infectious disease that affects the gastrointestinal tract. This condition is caused by the bacterium *Treponema hyodysenteriae*, not *Treponema pallidum* as previously mentioned. It commonly affects pigs between 7 to 12 weeks of age, though animals of all ages can be susceptible. The disease has a high morbidity rate—up to 75%—and a mortality rate ranging from 5% to 25%. It can occur at any time of the year, making it a persistent threat on pig farms. The symptoms of swine dysentery are quite distinct. Affected pigs often have bloody and mucus-filled feces, which can lead to dehydration and weight loss. The disease typically starts abruptly, with severe cases resulting in rapid death. In less severe cases, the illness may progress to a sub-acute or chronic stage after 3 to 4 weeks. During this time, the feces become more watery, filled with mucus and necrotic material, and the pigs may show poor growth and development due to prolonged illness. During post-mortem examination, the lesions are primarily found in the large intestine, particularly the colon and rectum. The intestinal walls and surrounding mesentery are often swollen and edematous. The mucous membranes appear inflamed, congested, and may bleed, with a thick layer of mucus and blood clots covering the surface. The contents of the intestines are soft or liquid, mixed with mucus and blood. In severe cases, the mucosa may die off, forming pseudomembranes that resemble a bran-like or fibrous film on the intestinal lining. Prevention and control of swine dysentery involve good biosecurity practices and the use of antibiotics. Commonly used treatments include drugs such as oxytetracycline, furazolidone, chloramphenicol, and gentamicin. Some farms report success with herbal remedies like "blood stasis net" and "germ net," although these should be used with caution and under professional guidance. Early detection and isolation of affected animals, along with proper sanitation and hygiene, are essential in preventing the spread of the disease within a herd. Disposable Electroencephalogram Monitoring Sensor Disposable Electroencephalogram Monitoring Sensor,Anesthesia Depth Sensor,Eeg Equipment,Eeg Disposable Sensor JIANGSU JIANLAIBANG MEDICAL EOUIPMENT CO.,LTD , https://www.jsjlbmed.com