Hello dear, The causes of constipation can be: 1. Any pathology/ sub acute obstruction in the Gastrointestinal tract. 2. Irritable bowel syndrome- constipation predominant type. 3. Functional cause- due to decreased gastric motility. 4. Inadequate intake of fluids and fiber rich diet. 5. Hormonal & Metabolic causes, etc. Though symptomatic relief can be obtained by intake of laxatives, the underlying cause needs to be treated. So, it will be better to consult a Gastroenterologist for a proper clinical examination. Investigations like complete blood count, stool examination, Ultrasound scan of abdomen, Colonoscopy & contrast studies will be helpful to rule out any pathological cause for your symptoms. Till then, maintain adequate hydration & proper nutrition status. Wishing a good health. Take care.