Yes, edibles may cause ringing in the ears. This is due to the effect marijuana has on blood pressure. Despite “chilling you out” THC actually causes a rise in blood pressure and an increase in heart rate. As your blood pressure rises, the veins around and in your ears become flush with blood. This can exacerbate already existing conditions such as tinnitus, leading to a ringing in your ears. This is nothing to worry about and should subside as the THC leaves your system. 

Effects of Cannabis on Hearing 

There is some evidence to suggest that marijuana use can affect hearing. In the short term, marijuana use can cause a temporary increase in heart rate and blood pressure, which can lead to a temporary increase in blood flow to the ears. This can cause a temporary increase in hearing sensitivity, making sounds louder and more intense. Known as Pulsatile Tinnitus, this affliction can be worsened by infection or a build up of ear wax. If you notice prolonged periods of ringing in the ears while not using marijuana, seek medical advice. 

Additionally, regular marijuana use has been associated with a decrease in hearing sensitivity. This is because the active ingredients in marijuana, known as cannabinoids, can damage the hair cells in the inner ear, which are responsible for detecting sound and transmitting it to the brain. This damage can lead to hearing loss, particularly in the high-frequency range.

It's also worth noting that marijuana use can also have other effects on the ear, such as dizziness and tinnitus (ringing in the ear). Therefore, it's important to talk to a doctor before using marijuana, especially if you have a history of hearing problems.

Other Reasons Your Ears Are Ringing 

There are many potential reasons why your ears may be ringing. Some common causes of ringing in the ears, also known as tinnitus, include:

• Exposure to loud noises: Constant exposure to loud noises, such as from loud music or machinery, can damage the hair cells in the inner ear, leading to tinnitus.

• Earwax buildup: Earwax is a natural substance that helps to protect the ear, but if it builds up it can cause a blockage that can lead to tinnitus.

• Ear infections: Infections in the ear, such as an earache or swimmer's ear, can cause inflammation and swelling that can lead to tinnitus.

• Meniere's disease: This condition is caused by an excess of fluid in the inner ear, and can cause tinnitus, hearing loss, and dizziness.

• Aging: As we get older, the hair cells in the inner ear can deteriorate, leading to hearing loss and tinnitus.

• Certain medications: Some medications, such as certain antibiotics, aspirin, and diuretics, can cause tinnitus as a side effect.

If your ears are ringing, it's important to talk to a doctor to determine the underlying cause and find appropriate treatment. In some cases, tinnitus can be managed through lifestyle changes, such as avoiding loud noises and reducing stress. In other cases, medication or other treatments may be necessary.