The possible reasons why the knee is afraid to squat or kneel include trauma, meniscus injury and osteoarthritis of the knee joint. 1. Trauma: may be due to trauma caused by fracture, joint ligament damage, traumatic arthritis, etc., there will be knee pain, swelling, limited movement and other symptoms, thus appearing the knee is not afraid to squat not afraid to kneel phenomenon. 2. Meniscus injury: it may be due to knee sprain, long-term weight bearing squatting and other reasons, resulting in meniscus injury, knee pain, swelling, restricted movement and other symptoms. 3. Osteoarthritis of the knee: due to osteoarthritis of the knee, when squatting or kneeling, the intra-articular pressure increases, and the subchondral bone of the articular cartilage is abnormally stressed, which can induce or aggravate pain. Knees do not dare to squat do not dare to kneel may also have other reasons, it is recommended to go to the regular hospital in a timely manner, improve the relevant examination, clear cause, under the guidance of the doctor for targeted treatment or treatment.