Objective- To get a concrete information about nature, cause and geographic distribution of ruminant congenital malformation in certain areas of Bangladesh. Design- Clinical study. Animals- A total 76 ruminant calves and kids having congenital deformities were studied. Procedures- Surgical intervention for each case was carried out after proper diagnosis and post operative care with systemic antibiotic and antihistamine was done properly. Results- There were 17 atresia ani, 5 atresia ani et recti, 4 pervious uracus, 13 dermoid cyst, 25 umbilical hernia, 6 recto vaginal fistula, 4 contracted tendon, 2 urethral diverticulum. In this study we have got 57 male and 15 female calves presented with various surgical affection whereas 4 male malformed kids were found but in we did not get any malformed female kids. Conclusion and Clinical Relevance- This study will help to get a quick information regarding prevalence of malformed ruminant.