A strange pregnancy symptom has taken the Internet by storm after women reported experiencing their toilet seats turning blue- and the reason for it is ridiculous.

A Reddit thread was stated after one user posted a strange inquiry, "Has anyone here turned their toilet seat blue? I just realised last night that our toilet seat is now a lovely blue/purple hue.”

She continued, "After some googling, apparently, this is something that happens to pregnant people? Please tell me I'm not alone in this!" The thread has now gone viral as Internet users are interested in knowing the answer to this bizarre question.

According to Metro, a blue-turning toilet seat is possible during pregnancy due to a change in chromhidrosis. This is a disorder that affects the sweat glands. Symptoms include coloured sweat on the face, under the arms, or around the beasts. Believe it or not, the sweat can be produced in a variety of colours, including green, blue, yellow, brown, or even black.

RELATED: 12 Tips For Excessive Pregnancy Sweating

The publication adds this rainbow array is due to a pigment, called lipofuscin, which is produced in the sweat glands.

"For some reason people with chromhidrosis have higher concentrations of lipofuscin or lipofuscin that is in a higher-than-normal state of oxidation." Angela Ballard, a Registered Nurse with the International Hyperhidrosis Society, explained. The sweat is able to react with certain materials, which explains why something like the toilet seat changed colours.

Chromhidrosis is a rare condition. Although pregnancy isn’t known to commonly cause chromhidrosis, due to the hormonal changes happening in the body, it is possible for it to develop suddenly.

However, there could be other, even rarer causes for colourful sweat. These include infection, excess bilirubin in the liver, or poisoning. In either case, always consult your doctor if you ae experiencing colourful sweat.

At the moment, there is no known cure for chromhidrosis, there are options for how to manage it. Many patients are prescribed a topical capsaicin cream 0.025%, which the apply to the affected area one to two times per day. Others have reported that Botox can help with the condition, although this may not be safe for pregnant patients.