何謂背痛？ 背痛是美國最常見的醫療問題之一。背痛可能是連續鈍痛或突發的銳痛。背痛的病因可以是： 事故。 跌跤。 提舉重物。 隨著年齡的增長脊柱發生變化。 障礙或病症。 具體治療取決於疼痛的病因和症狀。可以做一些事情來改善健康狀況並降低出現慢性（長期）背痛的機率。
何謂類風濕性關節炎？ 類風濕性關節炎 是一種慢性（長期）疾病，大多數情況下影響關節，例如腕關節、手、腳、脊柱、膝蓋和下頜。類風濕性關節炎造成的炎症可導致關節： 疼痛。 腫脹。 僵直。 喪失功能。 因為是免疫系統攻擊健康的關節組織，類風濕性關節炎是一種自身免疫性疾病。正常情況下，免疫系統幫助保護身體免於發生感染和疾病。 類風濕性關節炎可能讓您感覺異常疲倦，偶爾會發燒，而且食欲下降。類風濕性關節炎還可能造成心、肺、血液、神經、眼睛和皮膚的其他醫療問題。 治療可以幫助患者過上充實的生活。
什麼是痤瘡？ 痤瘡是常見的皮膚狀況，是由皮膚下面的毛囊堵塞造成的。油脂和死亡的皮膚細胞堵住毛孔，可爆發皮膚病灶（通常稱為粉刺或青春痘）。爆發最常見於面部，但也可出現在背部、胸部和肩部。 大多數人的痤瘡通常會在三十多歲之前消失，但有些人到四十多歲和五十多歲時仍然還有這一皮膚問題
What are sports injuries? The term “sports injury” refers to the kinds of injuries that most commonly happen during sports or exercise, such as sprains, strains, and stress fractures This health topic focuses on types of sports injuries that affect muscles, tendons, ligaments, and bones. There are several different types of sport injuries. The symptoms you have and your treatment depends on the type of injury. Most people recover and return to normal activities.
What is osteoporosis? Osteoporosis is a disease that causes bones to become weak and brittle. This increases your risk of broken bones (fractures). Osteoporosis is a “silent” disease because you may not have symptoms. You may not even know you have the disease until you break a bone. Breaks can occur in any bone but happen most often in: Hip bones. Vertebrae in the spine. Wrist. You can take steps to help prevent osteoporosis and broken bones by: Doing weight-bearing exercises, such as walking or dancing, and lifting weights. Not drinking too much alcohol. Quitting smoking, or not starting if
What is osteogenesis imperfecta? Osteogenesis imperfecta (OI) is a disease that causes your bones to break (fracture) easily. OI is also called brittle bone disease. Your symptoms may be mild or severe, depending on the type of OI you have.
What is back pain? Back pain is one of the most common medical problems in the United States. It might feel like a dull, constant ache or a sudden, sharp pain. Back pain can result from: An accident. A fall. Lifting something heavy. Changes that happen in the spine as you age. A disorder or medical condition. Treatment depends on the cause and symptoms of your pain. You can do things to improve your health and lower your chance of developing chronic (long-lasting) back pain.
What is rheumatoid arthritis? Rheumatoid arthritis (RA) is a chronic (long-lasting) disease that mostly affects joints, such as the wrist, hands, feet, spine, knees, and jaw. In joints, RA causes inflammation that leads to: Pain. Swelling Stiffness. Loss of function. Rheumatoid arthritis is an autoimmune disorder because the immune system attacks the healthy joint tissues. Normally, the immune system helps protect the body from infection and disease. RA may cause you to feel unusually tired, to have occasional fevers, and to have a loss of appetite. It also may cause other medical problems in the heart, lungs, blood, nerves, eyes