Definitely YES.

PCOS makes it more difficult for the body to use the hormone insulin, which normally helps convert sugars and starches from foods into energy. This condition is called insulin resistance which can cause insulin and sugar ( glucose ) to build up in the bloodstream.

This increase in insulin levels increase the production of male hormones called androgens which increase body hair growth, acne , irregular periods and weight gain.

As this weight gain is caused by male hormones, it is mainly in the abdomen. This makes the women with PCOS apple shaped more than pear shaped.

Is the weight gain associated with any risks

Yes.

Most of the problems in PCOS women are related to insulin resistance and weight gain. These include:

1.Type 2 diabetes

2.High cholesterol

3.High blood pressure

4.Sleep apnea

5.Infertility

6.Endometrial cancer

Many of these will lead to heart disease.

Is there a benefit in losing weight

Yes. Losing weight not only brings down your risk for many diseases, but it can also make you feel better.

When you have PCOS, losing just 10% of your body weight can bring your periods back to normal.

It can also helps to relieve some of the symptoms of polycystic ovary syndrome.

Changes in the lifestyle, along with regular exercise, a healthy diet and insulin sensitising agents , help to reduce  the weight which intern helps to treat PCOS.