Avoid processed foods

Processed foods are very high in sugars and sodium, and usually lack on the fiber front. Frequent consumption of such foods can lead to constipation. Next time, if you crave a sweet treat try eating berries, which are full of fiber and nutrients.
Not including fiber in your diet

Fiber is the indigestible part of certain foods which helps with smooth bowel movement. Raw fruits and vegetables are the most common source of fiber for most of us, however there some other great sources, such as flaxseeds, which contain soluble fiber in them.
There is a thing as too much fibre

Once you decide to start adding fiber to your diet, it's important to go slow. Having too much fiber at once will not help your bowel movements; instead it will mess up your digestion and make you bloated. Remember, fiber is indigestible, so it is important to make small increments of fibrous food in your diet.
Not being regular

Your body works in a rhythm, it is important to set a schedule to train your body. Constipation or not, going to the toilet every morning will help with regular bowel movement. Having a glass of water when you wake up can also help.
No physical activity

Inactivity is one of the culprits for constipation. Exercise gets your blood flowing and can help with normal bowel movements. If you want to experiment more, you can also try yoga. Yoga has specific positions that help alleviate constipation. Image source : Getty