The right transverse process at the c2-c6 level is thinner than the left, which may be caused by osteophytes, disc herniation, ligament hypertrophy and calcification. 1. Osteomalacia: Osteomalacia may compress the local intervertebral discs, leading to the thinning of the right transverse process at the c2-c6 level compared to the left. 2. Herniated intervertebral disc: Herniated intervertebral disc will stimulate and compress the local spinal cord, nerves and blood vessels, etc., which will also lead to the thinning of the transverse process on the right side of the c2-c6 level compared with that on the left side. 3. Ligament hypertrophy and calcification: Local ligament hypertrophy and calcification caused by various reasons may also cause the right transverse process at the c2-c6 level to become thinner than the left. The right transverse process at the c2-c6 level is thinner than the left, there may be other reasons, you need to go to the hospital in time for further examination, to clarify the cause of the disease on the treatment prescribed by the doctor.