What are the symptoms of pesticide poisoning from ingestion?

Under normal circumstances, symptoms of poisoning from ingesting pesticide mainly include nausea and vomiting, abnormal pupils, muscle tremors, difficulty breathing, and impaired consciousness. If any discomfort occurs, it is recommended to immediately call emergency services and go to a正规 hospital for diagnosis and treatment. Specific analysis is as follows:

1. Nausea and Vomiting

After entering the gastrointestinal tract, pesticides directly irritate the mucosa, causing spasms, while toxins entering the bloodstream act on the vomiting center. The poisoned individual first experiences a burning sensation in the stomach, followed by severe nausea. Vomiting becomes frequent and intense, and the vomit may contain fragments of gastric mucosa and sometimes has a distinctive pesticide odor.

2. Abnormal Pupils

Organophosphate pesticides inhibit cholinesterase activity, leading to acetylcholine accumulation, which acts on the pupillary sphincter muscle. Most patients develop markedly constricted pupils, resembling pinpoints, with sluggish or absent reaction to light. In some cases, certain pesticides may cause pupil dilation, accompanied by blurred vision.

3. Muscle Tremors

Neurotransmitter imbalance leads to abnormally increased excitability at neuromuscular junctions, resulting in involuntary muscle contractions. Tremors typically begin in small muscle groups such as the eyelids and fingers, then gradually spread to the limbs and entire body. These may occur episodically or persist continuously. In severe cases, muscle rigidity and convulsions can develop.

4. Difficulty Breathing

Pesticides may suppress the respiratory center or trigger bronchospasm and pulmonary edema, impairing gas exchange. Patients experience rapid, labored breathing, chest tightness, and coughing, often producing white or pink frothy sputum. In severe cases, cyanosis of the lips and weak respiration may occur.

5. Impaired Consciousness

Toxins invade the central nervous system and disrupt neural function. Early signs include dizziness and restlessness, progressing to drowsiness and confusion. In severe cases, the patient falls into a coma, unresponsive to external stimuli, often accompanied by urinary and fecal incontinence.

Pesticides must be strictly classified and stored separately, kept away from food and out of reach of children, with clear labeling. When a poisoning case is identified, induce vomiting immediately and bring the pesticide container or packaging to assist doctors in identification. During emergency transport, keep the airway open and turn the patient’s head to one side to prevent choking on vomit. Do not administer any medication on your own—treatment must follow medical guidance strictly.