This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Triradiate pelvis is seen in : 
Select and explain. 
A. Rickets, B. Chondrodystrophy, C. Osteoporosis, D. Hyperparathyroidism
A: Rickets
Answer: A: Rickets 
Explanation: Ans. is a i.e. Rickets Contracted pelvis is alteration in size and / or shape of pelvis of sufficient degree so as to alter the normal mechanism of labour in an average size baby. It can be a result of malnutrition, diseases or injuries affecting the bone of pelvis or it can be due to any developmental defect.