Brandon Marshall, 16, may be the world's tallest teenager -- and he's not done growing

This is the tallest teenager in Britain -- and possibly the world!

Meet 16-year-old Brandon Marshall, who hails from St. Edmunds, Suffolk. He stands at a staggering 7 feet 4 inches. He's known to his friends affectionately as "tiny," according to The Mirror.

Brandon says he was average height until the age of nine, when he went through a supersized growth spurt. And doctors believe he is still growing.

"I can't believe he's still growing. To be honest, I don't know what height he is going to reach," said his mom Lynne Quelch. He's is currently undergoing testing at Addenbrooke's Hospital in an attempt to figure out why he is so tall, but some scans show he is missing chromosome 12. 

"His height gene is mutated, so they are looking into it further because it has only ever been seen once before," Lynne added, according to Yahoo News. "But medically, everyday wise, he just gets on with it. He just has to bend through everything so he doesn’t clonk his head."

Said his mom, "He has got a super king bed at the moment but we are having an eight-foot bed custom built for him.

"Shoes have always been a problem because I will never be able to find them and they are really expensive," Brandon echoed of his size 17 feet.

If nothing else, his heigh has paid off when it comes to sports. He's been handpicked to play for the Wales National Basketball Team.

Previously, Broc Brown held the title at 7 feet 8 inches, but turned 20 this year. 

RELATED: More world records 

13 PHOTOS
Guinness World Records - Human Bodies
See Gallery
Guinness World Records - Human Bodies
The most wins at the World Beard and Moustache Championships is 8 and was achieved by Karl-Heinz Hille (Germany). From 1999 to 2011, Hille has been competing in the Imperial partial beard category. His most recent success was in Trondheim, Norway, in 2011. (Guinness World Records)

The largest flesh tunnel (earlobe) is 10.5cm (4.14 in) and was achieved by Kalawelo Kaiwi (USA) as measured at the Hilo Natural Health Clinic in Hawaii, on 14 April 2014. Whilst there are widely reported claims of larger flesh tunnels, tattoo and body-mod artist Kala has the largest fully verified flesh tunnels. They are about the diameter of a teacup, and big enough to fit a clenched fist through. (Guinness World Records)

The most flesh tunnels in the face is 11 and was achieved by Joel Miggler (Germany) as verified in Küssaberg, Germany, on 27 November 2014. Joel's flesh tunnels has a size ranging from 3 to 34 mm. (Guinness World Records)

The oldest living man is Israel Kristal (Israel), born on 15 September 1903, in the village of Malenie, near Zarnow in the Russian Empire (now Poland), and aged 112 years 178 days as of 11 March 2016. (Guinness World Records)
The tallest married couple is Sun Mingming and his wife Xu Yan (both China) who measure 236.17 cm (7 ft 8.98 in) and 187.3 (6 ft 1.74 in) respectively, having a combined height of 423.47 cm (13 ft 10.72 in) when measured in Beijing, China, on 14 November 2013. They were married in Beijing, China, on 4 August 2013. (Guinness World Records)
Garry Turner (UK) is able to stretch the skin of his stomach to a distended length of 15.8 cm (6.25 in) due to a rare medical condition called Ehlers-Danlos Syndrome, a disorder of the connective tissues affecting the skin, ligaments and internal organs. (Guinness World Records)

The most fingers and toes (polydactylism) on a living person is 28, which belong to Devendra Suthar, and was confirmed in Himatnagar,Gujarat, India on 11 November 2014. Devendra Suthar has 14 fingers and 14 toes. (Guinness World Records)

The world's longest documented hair belongs to Xie Qiuping (China) at 5.627 m (18 ft 5.54 in) when measured on 8 May 2004. She has been growing her hair since 1973 from the age of 13. (Guinness World Records)

The tallest man living is Sultan Kösen (Turkey, b.10 December 1982) who measured 251 cm (8 ft 2.8 in) in Ankara, Turkey, on 08 February 2011. The part-time farmer was the first man over 8 ft (2.43 m) to be measured by Guinness World Records in over 20 years. (Guinness World Records)

The largest feet on a living person are 40.1 cm (1 ft 3.79 in), right foot, and 39.6 cm (1 ft 3.59 in), left foot, belong to Jeison Orlando Rodriguez Hernandez (Venezuela) and were measured in Maracay, Aragua, Venezuela, on 6 October 2014. (Guinness World Records)
The widest mouth measures 17 cm (6.69 in) and belongs to Francisco Domingo Joaquim "Chiquinho" (Angola). (Guinness World Records)

The tallest male under the age of 18 years is Kevin Bradford (USA, b. 27 October 1998), who measured 215.9 cm (7 ft 1 in), at Paediatric Associates in Doral, Florida, USA, on 30 April 2015. Kevin was 16 years 185 days old at the time of verification. (Guinness World Records)

The shortest woman living (mobile) is Jyoti Amge (India, born 16 Dec 1993), who measured 62.8 cm (24.7 in) in Nagpur, India, on 16 December 2011. (Guinness World Records)

HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

Read Full Story