Hair loss can cause distress and a sense of premature ageing in men, as it often appears in your 30s or 40s, at a time when you feel healthy and young, and are striving in your career, relationships and family life. It's very common, with half of all men in their 50s having visible hair loss. It's usually part of the natural ageing process and mediated by hormones. Everyone wants to know what they can do to halt the process, or even to regain their locks. Let’s talk you through the options, and the less common causes of an underlying medical condition.

Blood in the urine is also known as haematuria. Blood that can be seen by the naked eye is called macroscopic haematuria, whereas blood that can’t be seen but is only found through a urine test is called microscopic haematuria. Although there are many harmless causes for it, both of these can indicate a cause for concern and require discussion with a doctor and possibly more investigations. Blood in the urine can occur alone with no other symptoms, but it can also occur with pain on peeing or the passage of clots. You may get other urine symptoms such as passing urine very frequently, needing to rush to the loo or the urine having a bad smell. The colour can vary from rose-coloured to Coca-Cola coloured.

If you have blood in your semen or ejaculate (‘cum’) this turns it from a normal white-cream colour to a red-pink or brown colour after sex or masturbation. There are a number of causes of blood ending up in the semen, or haematospermia, as it's medically known. This can affect men of any age after puberty but is more commonly seen between the ages of 30 and 40, and also in men over the age of 55 who have benign (harmless) enlargement of their prostate gland. Although it can be quite alarming to see blood in your ejaculate, it’s usually nothing to worry about and clears up by itself without any treatment. However, it should always be checked out by your doctor if it occurs.