Traumatic pseudocysts are often caused by large blunt contusion, which causes small blood vessels in local tissues or organs to rupture and hemorrhage. Blood and exudate enter the surrounding loose tissue and are surrounded by dense connective tissue. The wall of the lower wall has no true cyst structure, so it is called a pseudocyst. Clinically, it occurs in the lungs, spleen, pancreas and other organs and soft tissues rich in the buttocks, thighs, calves and other areas [1-4]. Traumatic thalamic pseudocysts are common in clinical practice, but the time is too long, crossing the joints, huge and multiple ascospore are rare, and no similar literature has been reported.