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
何謂異位性皮膚炎？ 異位性皮膚炎通常稱為濕疹。這是一種慢性（長期）疾病，造成皮膚炎症和刺激症狀，導致極度瘙癢。抓撓會引起： 發紅。 腫脹。 皸裂。 滲出透明液體。 結痂。 脫皮。 在大多數情況下，有時病情惡化（稱為急性發作），然後皮膚情況有所改善或症狀完全消失（稱為緩解）。 異位性皮膚炎是一種常見病症，任何人都可能患上。但異位性皮膚炎通常是在兒童期開始出現。異位性皮膚炎不會從一個人傳給另一個人。沒有人知道異位性皮膚炎的病因是什麼。根據症狀的嚴重程度，異位性皮膚炎患者的生活可能並不容易，但治療可幫助控制症狀。
What is acne? Acne is a common skin condition that happens when hair follicles under the skin become clogged. Oil and dead skin cells plug the pores, and outbreaks of lesions (often called pimples or zits) can happen. Most often, the outbreaks occur on the face but can also appear on the back, chest, and shoulders. For most people, acne tends to go away by the time they reach their thirties, but some people in their forties and fifties continue to have this skin problem.
What is atopic dermatitis? Atopic dermatitis, often called eczema, is a chronic (long-lasting) disease that causes the skin to become inflamed and irritated, making it extremely itchy. Scratching leads to: Redness. Swelling. Cracking. “Weeping” clear fluid. Crusting. Scaling. In most cases, there are times when the disease is worse, called flares, followed by times when the skin improves or clears up entirely, called remissions. Atopic dermatitis is a common condition, and anyone can get the disease. However, it usually begins in childhood. Atopic dermatitis cannot be spread from person to person. No one knows what causes atopic dermatitis. Depending on
What is osteonecrosis? Your bones are made up of living cells that need a blood supply to stay healthy. In osteonecrosis, blood flow to part of a bone is reduced. This causes death of bone tissue, and the bone can eventually break down and the joint will collapse. Osteonecrosis can happen to any bone, but most often it develops in the ends of long bones, such as the: Thigh bone. Upper arm bone. Less often, the bones of the elbows, ankles, feet, wrists, and hands are affected. When the disease involves part of a bone in a joint, it can
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