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Joint popping that occurs once only is sometimes a result of injury to the joint. Such causes of joint popping include ligament strain or ligament tear, tendon strain or tendon tear (tendon rupture), broken bone (fracture), and joint dislocation.
Joint popping that occurs repeatedly, sometimes intentionally, can be caused by harmless events, such as knuckle cracking or snapping of a tendon over a protruding bony prominence. Repeated joint popping can also be caused by conditions that represent more serious joint status, such as a cartilage tear from a torn meniscus or degenerated cartilage from arthritis (osteoarthritis).
Most of the time the clicking or snapping is due to everyday use and changes that occur over time within our joints. As we age this causes some of the surfaces to roughen —thus when they rub against one another they will snap, click, or pop within the shoulder. In the majority of circumstances painless snapping or clicking of the shoulder is not an issue to worry about. Painless clicking and popping usually does not require any treatment at all. By the time I see you in the office, many have tried various remedies. I have seen many different shoulder compression sleeves. I’ve also seen many of you try Glucosamine . If your shoulder hurts when it pops, or if the popping and snapping started after an injury then you should consider an examination by an Orthopedic Surgeon.
Clicking or popping of shoulder may start soon after an injury. That might mean that you have sustained a “significant” shoulder injury. There are occasions when popping or snapping could signify a problem in your shoulder.
If your shoulder was injured and it is now sliding in and out of place (instability), it may snap or pop.
If the rotator cuff was injured or torn, the torn edge could snap or pop. Or…
If the labrum of the shoulder was torn, your shoulder may also snap or pop.
A piece of cartilage has torn loose and you have a “loose body” getting caught in the shoulder.
If the snapping is in the back of the shoulder, it could be an issue with your shoulder blade, or scapula.
骨刺是骨质增生的俗称,临床上我们称其为骨质增生,骨质增生并非只有老年人才会患,年轻人也会有。它是一种退行病变,一般年龄越大退变越明显,所以老年人比年轻人发病率高;骨骼的长期劳损和坐姿不良也是导致骨质增生的重要原因,此类原因常常导致学生,IT工作者,会计等
预防：
(1)适当进行体育锻炼骨刺患者避免长期剧烈的运动，并不是不活动，恰恰相反，适当的体育锻炼是预防骨刺的好方法之一。因为关节软骨的营养来自于关节液，而关节液只有靠“挤压’才能够进入软骨，促使软骨的新陈代谢。适当的运动，有利于关节液向软骨的渗透，减轻关节软骨的退行改变，从而减轻或预防骨刺的出现
（2）避免长期剧烈运动患者避免长期、过度、剧烈的运动或活动是诱发骨刺的基本原因之一。尤其对于持重关节(如膝关节度地受力及牵拉,造成、髋关节)，过度的运动使关节面受力加大，磨损加剧。长期剧烈运动还可使骨骼及周围软组织过局部软组织的损伤和骨髂上受力不均，从而导致骨刺。
(3)减轻体重患者体重过重是诱发脊柱和关节骨质增生的重要原因之一。过重的体重会加速关节软骨的磨损，使关节软骨面上的压力不均匀,造成骨刺。因此对于体重超标的人，适当的减轻体重可以预防脊柱和关节的骨刺。
(4)及时治疗关节的损伤 患者关节损伤包括软组织损伤和骨损伤。关节的骨刺经常与关节内骨折有直接关系。由于骨折复位不完全,造成关节软骨面不平整，从而产生创伤关节炎。对于关节内骨折的患者，如果能够及时治疗，作到解剖复位，完全可以避免创伤关节炎和关节骨质增生的发生。
骨刺主要是由关节因种种原因造成软骨的磨损、破坏，并促成骨头本身的修补、硬化与增生，一般长骨刺就表示此人的脊椎进入老化阶段。骨刺会由于生长的部位不同，而产生不同的症状。然而，骨刺并非老人家的专利，由于工作型态改变，许多人必须久坐、久站，若是加上姿势不正确，很容易年纪轻轻就使脊椎提早发生退化现象，而诱发骨刺的发生。骨刺的病因可包括年龄老化、损伤、肥胖超重、内分泌紊乱、骨细胞代谢异常、神经营养障碍、关节局部血循改变等。其中年龄老化是最强的危险因素，其次是外伤和肥胖。有手、膝外伤史者，手、膝骨刺的发生率比无外伤史者分别高4.2倍和3.4倍。37岁体重超标70%的男性患骨刺的危险性为标准体重者的1.5倍，女性为2.1倍。65岁以上超重者骨刺的发生率高达60%，这可能是因为超重增加了额外的机械负荷。
骨质增生患者常伴有骨质疏松，骨质疏松常由缺钙引起，但患者血钙往往反而会增高。问题的关键在于，缺钙使甲状腺功能刺激代偿，动员骨钙释出以保证血钙而维持生理需要。这样使得骨钙缺少，而血钙、细胞内钙和组织间钙增加，由于血钙增加使降钙素功能增加，促进成骨活动及新骨形成，在骨骼某些部位形成骨质增生。骨刺的病因是什么?刺的病因：临床上常可看到，OA治愈疼痛消失后，照片复查却见骨刺依旧。显然骨刺本身并不引起疼痛，OA真正的元凶是软骨退变。当软骨退变老化时，软骨变薄变脆，失去弹性，甚至剥离脱落，裸露的骨面容易受到力的冲击而损伤，骨内的神经末梢感受到应力和关节液里炎性物质的刺激而产生疼痛。软骨退变得越厉害疼痛就越剧烈。骨刺是一种自然的老化现象，当人步入老年，有80%的患者都会患有各种不同的程度的骨刺，出现了骨刺也不用担心，有的会自然身体吸收，有的经过一些保守的治疗就可以很好的治愈。
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