What is osteoporosis?

Osteoporosis is a bone disease characterized by a decrease in bone density and a breakdown of the microstructure of bone tissue, resulting in weaker bones and a higher risk of fractures. The disease is usually asymptomatic and is not detected until a fracture occurs, hence the name "silent killer". According to the Hong Kong Health Bureau, in Hong Kong, which has the highest incidence of hip fractures in Asia, about 30% of women over 50 years of age and about 20% of men over 50 years of age suffer from osteoporosis.

Groups at high risk of osteoporosis include:

• Postmenopausal women: Reduced estrogen levels may accelerate bone loss.
• Older people: The rate of bone loss accelerates with age.
• People with a family history of this disease: Genetic factors play an important role in osteoporosis.
• Long-term use of steroid medications: These drugs can interfere with bone formation.
• Prolonged inactivity or bedriddenness: Bones require sufficient weight-bearing stimuli to maintain density.

Importance of the issue

Early detection of osteoporosis is crucial because intervening before a fracture occurs can significantly reduce the risk of future fractures. The Hong Kong Orthopaedic Association recommends that women over 65 and men over 70 be regularly screened for osteoporosis, and those with high risk factors should start testing in advance at the age of 50.

In the management of osteoporosis, the concept that prevention is better than cure is particularly important. Early detection enables:

• Assessment of individual fracture risk
• Develop an individualized prevention strategy
• Monitor changes in bone density
• Timely adjustment of treatment plan

There are many professional things in Hong KongOsteoporosis Screening ClinicSGS offers a wide range of valuation services, including:Osteoporosis testand follow-up management plan.

General osteoporosis test

The most accurate way to detect osteoporosis is a dual-energy X-ray absorptiometry (DEXA) scan. This technique uses two X-rays of different energies to measure bone density in the lumbar spine and hip joints, which are the two areas most likely for osteoporosis fractures. In Hong Kong,This service is widely available in major hospitals and specialty clinics.

Other tests include:

• Ultrasound: Commonly used for heel measurement, more portable than DEFA, but less accurate
• Quantitative computed tomography (QCT): provides a three-dimensional measurement of bone densitometry, but with a higher radiation dose
• X-ray: can only detect severe bone loss, not suitable for early diagnosis

How to prepare for an osteoporosis test

Before undergoing a DEXA scan, patients should be aware of the following:

• Avoid taking calcium supplements 24 hours before the test
• Avoid metal fittings and dress loosely
• Tell your doctor if you have recently had a barium scan, swallowing scan, or CT scan
• Women who are pregnant or may become pregnant should postpone the test

This procedure usually takes only 10-15 minutes and involves placing the patient flat on a table while the equipment slowly scans the area of interest. The entire process is painless and the radiation dose is very low, equivalent to the daily background radiation dose in the natural environment.

Interpretation of test results for osteoporosis

The results of the DEX scan are represented by T-and Z-values.

The Z-score compares a patient's bone density to a population of the same age, gender, and body type. When discussing the results with your doctor, you should ask:

• Individual fracture risk assessment
• Do I need medication?
• Lifestyle Change Recommendations
• If you need a review

Prevention and treatment of osteoporosis

Prevention and treatment of osteoporosis requires a multifaceted approach.

Dietary advice

Calcium (1000-1200 mg) and vitamin D (800-1000 IU) should be taken properly every day. Some common foods high in calcium in Hong Kong include:

• Dairy products: milk, cheese, cheese
• Dark green vegetables: kale, choisam
• Soy products: tofu, soy milk
• Small fish with bones: sardines, rice fish

Exercise Recommendations

Weight-bearing and strength-building exercises are most effective in maintaining bone density.

• Brisk walking, jogging, and dancing at least 3 times a week for 30 minutes at a time
• Resistance training 2-3 times a week
• Tai chi improves balance and reduces the risk of falls

Drug therapy

According to the guidelines of the Hong Kong Hospital Administration, commonly used medications include:

• Bisphosphonates: alendronate, etc.
• Selective estrogen receptor modulators: raloxifene, etc.
• 副甲狀腺素類似物：如特立帕肽
• RANK ligand inhibitors: denosumab, etc.

Embrace osteoporosis and live a healthy life

Osteoporosis is common, but not inevitable. By regularityOsteoporosis testWith a healthy lifestyle and proper treatment, most people can maintain strong bones and reduce the risk of fractures. Hong Kong's healthcare system is well establishedDEXA Scan Hong KongService & ProfessionalOsteoporosis Screening ClinicTo facilitate early assessment and management of bone health. Investing in bone health is an investment in your future quality of life, and it's never too late to start today.骨質疏鬆檢測

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一、洗髮前的準備

洗髮是頭髮護理的基礎步驟，但許多人忽略了洗髮前的準備工作。正確的準備不僅能提升清潔效果，還能減少對頭髮的傷害。

1. 梳開頭髮的重要性

洗髮前，務必先將頭髮梳開。根據香港美容協會的調查，超過60%的人習慣直接洗髮，這容易導致頭髮打結，增加斷裂風險。使用寬齒梳從髮尾開始，逐步向上梳理，能有效去除表面灰塵並減少洗髮時的拉扯。特別是長髮或捲髮者，更應養成此習慣。洗髮水

2. 水溫的控制

水溫過高會破壞頭皮油脂平衡。香港水務署建議，溫應控制在38℃以下（接近體溫）。測試方法很簡單：用手腕內側感受水溫，不覺燙即可。若使用，更需注意水溫，因為高溫可能影響成分的活性。

二、洗髮的步驟

正確的洗髮步驟能徹底清潔同時保護髮絲。以下是專業髮型師推薦的流程：

1. 如何正確起泡

先將倒在掌心，加少量水揉搓起泡。香港消費者委員會測試顯示，直接將塗抹頭皮可能導致局部過度清潔。建議用量：短髮（硬幣大小）、長髮（50元硬幣大小）。若使用，可配合起泡網增加泡沫量。

2. 按摩頭皮的技巧

用指腹（非指甲）以畫圓方式按摩，從前額髮際線向後頸移動。香港中醫學會指出，正確按摩能促進血液循環，提升吸收率。重點區域：頭頂百會穴、耳後翳風穴，每個部位按壓3-5秒。

3. 清洗的重點

沖洗時將頭髮分層撥開，確保水流穿透每層髮絲。特別注意後腦勺區域——香港大學研究發現，這是清潔最常遺漏的部位。沖洗時間應至少1分鐘，直到聽不到泡沫摩擦的"吱吱"聲。生髮精華

三、洗髮後的護理

洗後護理決定頭髮最終狀態，以下是關鍵要點：

1. 護髮素的使用方法

護髮素應塗抹在髮尾至髮中段，避開頭皮。香港美容雜誌《Hair+》實驗顯示，護髮素接觸頭皮可能導致毛孔堵塞。使用時機：擠乾頭髮水分後（不滴水狀態），停留2-3分鐘再沖淨。

2. 吹乾頭髮的注意事項

先用毛巾按壓吸水（勿摩擦），吹風機保持15公分距離。香港電器安全協會建議：選擇負離子吹風機，溫度設定中低溫。重要技巧：先吹乾頭皮，髮絲保留微濕狀態，此時塗抹吸收效果最佳。

四、不同髮型的洗髮技巧

髮型長度與質地會影響洗髮方式：生髮洗頭水

1. 長髮的洗髮重點

長髮者應分區清洗：先將頭髮分為左右兩區，每區再分2-3層。香港髮型學院教材指出，這能避免清潔死角。推薦使用含胺基酸的，pH值5.5最適合長髮結構。

2. 短髮的洗髮方式

短髮容易過度清潔，建議隔天洗髮。香港男士理容調查顯示，78%短髮男性有頭皮過乾問題。技巧：洗髮時用梳子輔助清潔（如：洗髮梳），確保接觸每處頭皮。

3. 捲髮的洗髮技巧

捲髮應減少摩擦，建議採用"co-wash"（只用護髮素清潔）。香港捲髮協會數據：每週1-2次正常洗髮即可。關鍵步驟：洗後用T恤（非毛巾）包住吸水，能減少毛躁。

五、洗髮常見錯誤

避開這些錯誤能大幅改善頭髮健康：

1. 洗髮精直接塗抹在頭皮上

這會導致頭皮局部過度清潔。香港皮膚科醫學會警告，此舉可能引發接觸性皮炎。正確做法：如前述先起泡，或選擇泵頭式（自動起泡設計）。

2. 過度清潔頭皮

香港頭皮健康中心研究指出，每日洗頭2次以上會破壞酸性保護膜。異常徵兆：洗後1小時頭皮緊繃。解決方案：改用溫和，並搭配修復。

3. 沒有徹底沖洗乾淨

殘留洗劑是頭皮問題主因之一。測試方法：用白色棉片擦拭頭皮，無泡沫或滑膩感即為沖淨。特別注意：使用含矽靈或生髮成分的產品時，沖洗時間需加倍。

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