It will be consisted of 20 obese women diagnosed as having PCOS. Each will receive placebo laser on acupoints (3 sessions/week, 17 minutes/ session) in addition to low caloric diet for 3 months.

It will be consisted of 20 obese women diagnosed as having PCOS who will receive the same low caloric diet as in group (A) in addition to application of laser acupuncture on (REN 4,5), (ST 25,29,36,40), (CV 3,6,10,12),(SP 6), (L14), 1 minutes for each points (17 minutes/session), 3 times/week for 3 months.

A low caloric diet of 1200 Kcal will be followed by participant for 3 months. The dietary intervention follows a macronutrient ratio of 15% protein, 30% fat, and 55% carbohydrates. Participants are advised to consume 170-240g of complex carbohydrates, 60-100g of fat, and 55-93g of protein per day, with 20-35g of fiber. Patients are also advised to limit salt, tea, and caffeine intake, and receive supplemental vitamins to prevent deficiencies.

It will be calculated from the weight and height of each participant in both groups (A&B), before beginning of the study and after end of the study program, according to the following equation:

BMI =(Weight (kg))/(Height square (m²)) kg/m²

It will be calculated from the waist and hip circumferences for all participants in both groups (A&B) according to the equation waist/hip ratio= (waist / hip) before and after the end of study.

A venous blood sample will be collected from each participant before and after the end of study. The 2-hour plasma glucose level <140 mg/DL (7.8 MMOL/L) is considered normal. A blood glucose level between 140 and 199 mg/DL (7.8 and 11 MMOL/L) is considered impaired glucose tolerance, or pre-diabetes.

A venous blood sample will be collected from each participant before and after the end of study. Fasting plasma insulin level will be measured for all participants in both groups (A&B) after at least 8 hours of fasting. Normal insulin level is 3-8µIU/ml, mild insulin resistance is 8-10µIU/ml, moderate insulin resistance is 10-12µIU/ml and sever insulin resistance is >12 µIU/ml.

A venous blood sample will be collected from each participant before and after the end of study. A G/I ratio of less than 4.5 has been shown to be sensitive and specific for insulin resistance in a group of women with PCOS.

The quality of life of participants in both groups (A & B) will be assessed before and after the treatment program using a 26-item questionnaire divided into five sections: emotions (8 items), body hair (5 items), weight concerns (5 items), infertility concerns (4 items), and menstrual irregularities (4 items). Each item is rated on a seven-point scale, where 7 indicates the best situation and 1 the worst. Scores are calculated as means for each domain, with total scores categorized into four intervals reflecting varying effects on quality of life.Ultimately, the first interval values (from 1 to < 3 points) represent marked effects on quality of life; second interval values (from 3 to < 4 points) represent the marginal effect on quality of life; third interval values (from 4 to < 5 points) represent the minimal effect on quality of life; fourth interval (5 points) represents no effect on quality of life.