This clinical trial aims to find out whether stone needles therapy can effectively assist in the treatment of maternal diastasis rectus abdominis (DRA) based on the Belt channel theory, it will also validate whether the Ben-Tovim Walker body attitude questionnaire (BAQ) can be used as a tool to measure body image satisfaction in Chinese patients with postpartum DRA. The main questions it aims to answer are: Can stone needles therapy promote the recovery of maternal DRA? Whether the Chinese version of the Body attitude questionnaire (BAQ-C) can be used as a body image satisfaction measurement tool for patients with postpartum DRA. The researchers will add stone needles therapy to neuromuscular electrical stimulation (NMES) and massage therapy to see if stone needles therapy can promote the recovery of postpartum DRA.

Participants will: Receive NMES combined with massage therapy or the addition of stone needles therapy on a sub-basis every day for 10 days.

Abdominal circumference, inner rectus distance will be measured and recorded after each treatment Body imagery satisfaction, low back pain and dysfunction scores, anxiety, depression scores, and quality of life scores will be measured after all treatments are completed.

Inclusion Criteria:

1. patients who meet the diagnostic criteria of postpartum rectus abdominis muscle separation, and the distance of rectus abdominis muscle separation is ≥3.0cm with postpartum low back pain.
2. Patients who are >42d postpartum and have cleaned up their discharge;
3. Women who are 42day-3 mouths after normal delivery;
4. Postpartum women who have not received any other treatment before treatment in our hospital;

Exclusion Criteria:

1. With severe parenchymal organ diseases such as renal, cardiac, or hepatic diseases or due to comorbid cognitive impairment, Alzheimer's disease or psychological or psychiatric diseases can not complete the cooperation, etc;
2. Those with contraindications to stone therapy;
3. Those with contraindications to bioelectric stimulation therapy.
4. Combined with puerperal infection and gastrointestinal adhesion;
5. Patients with postpartum back pain due to other reasons such as lumbar disc herniation or kidney stones;
6. Patients who cannot tolerate the program;

The outcomes assessor did not know whether the patient being measured belonged to the control or intervention group.