Step 1: Understanding the Concept:
The endocrine system is a system of glands that produce hormones. An endocrine disorder is a medical condition that occurs when a gland in the endocrine system produces too much or too little of a hormone.
Step 2: Detailed Explanation:
- Diabetes (specifically Diabetes Mellitus) is a classic endocrine disorder. It is caused by either the pancreas not producing enough of the hormone insulin or the body not effectively using the insulin it produces.
- Asthma is a chronic respiratory disease.
- Malaria is an infectious disease caused by a parasite.
- Stomach ache is a symptom, not a disorder itself.
Step 3: Final Answer:
Diabetes is a disorder related to the hormone insulin and the pancreas, making it an endocrine disorder.