Patient case (clinical description): A 66-year-old woman comes to the office due to joint pain in the hands and periodic morning stiffness that lasts less than 15 minutes.  The pain is moderately severe and worsens with daily activity. The patient used Tylenol with minimal relief.  Past medical history is notable for hypertension and hypercholesteremia.  Physical examination shows firm nodules over the distal interphalangeal joints, bilaterally. The patient has pain in her knees as well. The knees are stiff in the morning for less than 30 minutes and become worse with climbing stairs. She has some sensation of bone friction during activity. X-ray shows narrowing of the joint space, subchondral bone sclerosis and osteophyte formation along the joints.

Patient's own account: I'm a 66-year-old woman and I went to my doctor's office because of a bloody joint pain in my hands that has been lasting for a while. The pain comes and go in the morning usually. I feel like a stiffness that last less than 15 minutes. The pain is moderately severe but it gets worse when I'm using my hands. I used Tylenol which helped a little. Apart from that, I suffer from hypertension and high cholesterol. The doctor made me notice that I have bumps around both of my hand joints. I also suffer from my knees and they are also stiff in the morning for around 30 min. It's even worse when I climb up the stairs! I also feel like my bones are rubbing against each other when I'm moving. The X-ray showed that I have narrow joint space, I have sclerosis, and abnormal growths of bone along my joints.

Clinical trial: The Effect of Chronic Pain Relief Over Knee Joint Area by Gua Sha Therapy

Eligibility criteria:
Inclusion Criteria:

          1. Those aged 20-60 years old

          2. There are at least three pains in the unilateral or bilateral knee joints (up and down
             steps, squats, running, squatting, jumping, walking, and sedentary for a long time),
             and the pain lasts for at least one month.

          3. Visual pain score (VAS) ≧30 (mm) for unilateral or bilateral knee joints

          4. Non-steroidal anti-inflammatory drugs, analgesics, and Chinese herbal medicines for
             the treatment of knee joint pain

          5. Non-severe degenerative arthritis (Kellgren-Lawrence scale knee arthritis grade 2 or
             less)

        Exclusion Criteria:

          1. thighs, knee joints, calf areas, those who have undergone surgery or are expected to
             have surgery, those who have been traumatized within the last month, and those who
             have wounds, ulcers, infections or other skin diseases within two weeks

          2. Pregnancy

          3. BMI value is greater than 27 KG/m2

          4. People with cardiovascular disease or hemophilia

          5. Patients with gout, rheumatism and rheumatoid arthritis

          6. Diabetic patients with knee arthritis, patients with dry arthritis

          7. Patients with malignant tumors

          8. Those who are allergic to Vaseline products
No condition on gender to be admitted to the trial.
No healthy subjects accepted to join the trial.
Subject must be at least 20 Years old.
Subject must be at most 60 Years

Eligibility (NLI label): Contradiction