Planting indoors helps to purify the air, but sometimes it also has a negative effect on your health. Some of the plants below are so familiar that most people don't take precautions against them.

1. Tree of Perennial Youth

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Perennials have beautiful leaves, so they are often used to decorate homes. However, exposure to them can cause blisters in your mouth, diarrhea, nausea, swelling, pain, and burning on your mouth and throat.

2. Tiger tongue tree

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The plant contains saponins, which can be toxic if ingested. Because saponins can cause vomiting and diarrhea, it's best not to keep pets near plants.

3. Money tree

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This common desk plant can cause pain, skin irritation and swelling if ingested. If you come into contact with it by accident, be sure to wash the contact area with water and contact a medical professional when symptoms worsen.

4. Aloe (aloe vera)

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The aloe vera plant has so many health and beauty uses, no one would think it would make it to this list. According to scientists, the aloe plant contains substances that cause diarrhea, allergies and kidney problems.

5. Marigolds

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If you eat this flower by mistake, you will experience discomfort in the digestive tract. The sap can also cause a skin rash.

6. Betel nut tree hexagon

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In betel nut contains calcium oxalate - a compound capable of causing sore throat and difficulty swallowing. Although the leaves are beautiful, be sure to keep pets away from them.

7. Ornamental plants

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Animals and children that come into contact with mondo leaves may experience drooling and difficulty breathing. It is best to contact a toxicologist or a poison handling center to handle the contaminated area if you are accidentally exposed.

8. Betel nut tree

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Like the above plants, this plant contains calcium oxalate, which can irritate the lips, tongue and mouth, causing you to drool, even vomit.

9. Dried Bone Tree

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In the dried bone plant there is a corrosive sap that irritates the skin and eyes. That's why you must wear gloves and glasses when caring for plants. If the plant comes into contact with your eyes, you will experience redness, itching, burning, and even affect vision.

10. Mao Earth Emperor

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Few people know that the leaves, flowers, and seeds of the foxglove contain digoxin, which can be fatal. When ingested, both humans and animals are equally affected. When poisoned, the victim has symptoms such as nausea, vomiting, diarrhea, drooling, arrhythmia, weakness, dilated pupils, tremors, convulsions and in some cases may lead to dead.