Something must be done in order to release the tension within the dura mater before any lasting correction of the spine can be effected. Each of the cranial nerves is wrapped in a sheath of dura mater. As they exit the cranial vault they are described by Gray's Anatomy as having a "dural cuff".

Inclusion Criteria:

• The age of the participants will be ranged from 20 to 40 years. Their body mass index will be ranged from 20 to 25 kg/m2. They will have regular menstrual cycle. They will not receive any hormonal therapy or taking any regular drugs.

Exclusion Criteria:

• Bone disease. Discogenic state with radiculopathy or not. Systemic disease of musculoskeletal system. Any sensory problems. Previous vertebral fractures. Major spinal structural abnormality.

30 women will participate in this study, thirty women diagnosed as having back ar neck pain after surgery.They will be selected from outpatient clinic of obstetrics and Gynaecology department in El-Hosary family health Centre.

All participants will be given a full explanation of the protocol of the study and informed consent form will be signed from each subject before participating in the study