A 16 years old boy hailing from Comilla presented with sudden onset of upper abdominal pain, ascites and generalized muscle wasting for 3 months. Ultrasonogram (USG), Color Doppler and Venography was done and diagnosed him a case of Budd-Chiari syndrome. The patient was treated with salt and water restriction, diuretics, repeated palliative ascetic fluid aspiration with re-accumulation within 1-2 days. He was also given Low molecular weight Heparin for 7 days, overlapped and followed by warfarin 10mg/day with target INR 2.5-3.5. Consultation with hepatobiliary surgeon was done for shunt operation, but operation was not possible due to poor general condition. This patient improved satisfactorily with low molecular weight heparin, warfarin and supportive measures. Budd-Chiari syndrome is a rare veno-occlusive disorder involving hepatic vasculature.