①急性滑囊炎 ：急性滑囊炎的特征是疼痛、局部压痛和活动受限。如果是浅表

①急性滑囊炎 ：急性滑囊炎的特征是疼痛、局部压痛和活动受限。如果是浅表滑膜受累 ，局部红肿、化学性或细菌性滑膜炎可引起剧烈疼痛 ，发作 可持续数天至数周 ，数次复发。②慢性滑囊炎 ：急性滑囊炎多次发作或反复外伤后形成慢性滑囊炎。由于滑膜增生 ，滑膜囊壁增厚 ，最终发生粘连。由 于疼痛、肿胀和压痛 ，可能会出现肌肉萎缩和活动受限。②肩峰下滑囊炎 ：肩峰下滑囊炎表现为肩部局部疼痛、压痛。尤其是从50°拉伸到110°时更加 明显。②外伤性滑囊炎

① Acute bursitis: The characteristics of acute bursitis are pain, local tenderness, and limited mobility. If it is a superficial synovial involvement, local redness, swelling, chemical or bacterial synovitis can cause severe pain, which can last for several days to weeks and recur several times Chronic bursitis: Acute bursitis forms after multiple episodes or repeated injuries. Due to synovial hyperplasia, the synovial sac wall thickens and eventually adhesions occur. Due to pain, swelling, and tenderness, muscle atrophy and limited mobility may occur Subacromion bursitis: Subacromion bursitis is characterized by local pain and tenderness in the shoulder area. Especially when stretching from 50 ° to 110 °, it is more obvious Traumatic bursitis

① Acute bursitis: Acute bursitis is characterized by pain, local tenderness and limited activity. If the superficial synovium is involved, local redness, chemical or bacterial synovitis can cause severe pain, and the attack can last for several days to weeks and recur several times. ② Chronic bursitis: Chronic bursitis is formed after repeated attacks of acute bursitis or repeated trauma. Due to synovial hyperplasia, the wall of synovial sac thickens, and finally adhesion occurs. Due to pain, swelling and tenderness, muscle atrophy and limited activity may occur. ② Subacromial bursitis: Subacromial bursitis is characterized by local pain and tenderness in the shoulder. Especially when stretching from 50 to 110. ② Traumatic bursitis