A toilet leaking from the bottom can be caused by several factors, including:

1. Wax ring: The wax ring that seals the toilet to the floor may be worn out or damaged, causing water to leak out from the base of the toilet.

2. Tee bolts: The bolts that hold the toilet to the floor, also known as tee bolts, may be loose, causing the toilet to rock and break the seal formed by the wax ring.

3. Cracks: Cracks in the toilet bowl or tank can also cause water to leak out from the base of the toilet.

4. Water supply line: A leaking water supply line can cause water to collect at the base of the toilet.

5. Drain line: A clogged drain line can put pressure on the wax ring at the base of the toilet, causing it to break and leading to toilet leaks.

To fix a toilet leaking from the bottom, you can try the following steps:

1. Identify the source of the leak: Look closely at the toilet base to see if water is seeping out under the toilet. If you cant see clearly, soak up the water from the floor with a towel and dry the toilet itself.

2. Tighten bolts: If youre sure that water is leaking from underneath the toilet, try stopping it by tightening the bolts attaching the toilet to the floor. Pry the bolts plastic covering caps off using a screwdriver or putty knife, then tighten each bolt with a wrench, using only gentle pressure.

3. Replace wax ring: If tightening the bolts doesnt work, you may need to replace the wax ring. To do this, turn off the water supply to the toilet, drain the tank and bowl, remove the toilet from the floor, and replace the wax ring.

4. Call a professional: If youre not comfortable fixing the toilet yourself, or if the problem persists after attempting to fix it, its best to call a professional plumber to diagnose and repair the issue.

Its important to address a leaking toilet as soon as possible to prevent water damage to your bathroom floor and tile, as well as to avoid expensive water bills and repairs.