Adeficiency in vitamin may lead to bleeding problems.

A deficiency in vitamin A may lead to bleeding problems.
vitamin A

I think the answer is:

A deficiency in vitamin K may lead to bleeding problems.

Here's why:

Vitamin K is a blood-clotting vitamin, or a vitamin responsible for blood clots. This basically means that, without vitamins like Vitamin K there, your nose would never stop bleeding and scabs for your scrapes and/or cuts wouldn't form either. Vitamin K deficiency may cause frequent nosebleeds.

Due to Vitamin K being a blood-clotting vitamin that already has a relationship with your blood, I believe a deficiency in vitamin K may lead to bleeding problems, the same way a lack of it can cause nosebleeds often.

Bonus Paragraph About Vitamin K:

Approximately half of the vitamin K you need forms by itself in one's intestinal tract. You can get the rest of the Vitamin K you need (which is around half for this needed vitamin) from cheese, liver, leafy vegetables, asparagus, bacon, green tea, and coffee.

Dialect is probably part of the answer

Depends on which disease, but as a general rule eat healthy. many vegetables.                                                        hope my answer has come to your . you for posting your question here in we hope to answer more of your questions and inquiries soon. have a nice day ahead! : )     (p.s mark as brainliest if )